Blocks Definition and 767 Threads

Code::Blocks is a free, open-source cross-platform IDE that supports multiple compilers including GCC, Clang and Visual C++. It is developed in C++ using wxWidgets as the GUI toolkit. Using a plugin architecture, its capabilities and features are defined by the provided plugins.
Currently, Code::Blocks is oriented towards C, C++, and Fortran. It has a custom build system and optional Make support.
Code::Blocks is being developed for Windows and Linux and has been ported to FreeBSD, OpenBSD and Solaris. The latest binary provided for macOS version is 13.12 released on 2013/12/26 (compatible with Mac OS X 10.6 and later), but more recent versions can be compiled and MacPorts supplies version 17.12.

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  1. B

    Friction between two blocks on a table

    I have a question for two scenarios (see the diagram attached): 1) When the two blocks on the table are at rest, the static friction the table exerts on the bottom block is counteracting the tension in the rope, resulting in a net force of zero. Is there any static force being exerted by the...
  2. S

    2 Blocks 1 Pulley - First Time Poster

    Hi! First Time Poster. Thank you for helping me with my problem! Homework Statement A 28.3-kg block (m1) is on a horizontal surface, connected to a 5.5-kg block (m2) by a massless string as shown in the Figure. The pulley is massless and frictionless. A force of 208.9 N acts on m1 at...
  3. S

    Blocks connected by rope on slope

    Homework Statement I just want to confirm this. A block m1=10 kg is hanging from a rope. the rope is attached by a frictionless pulley to a block m2=5 kg on a frictionless slope with a 40 degree angle from the ground. Find the tension in the rope and the acceleration of the first block...
  4. A

    Calculating Friction Force on Blocks A and B

    Homework Statement Homework Statement [/b] am i right? please help me .. thnx Homework Statement the blocks shown in the figure are connected by flexible, inextensible cords passing over frictionless pulleys. at A, the coefficient fiction is 0.30 while at B, it is 0.40. compute the...
  5. S

    Connected blocks on a surface with friction

    This is not a homework problem rather it is a discussion that I have been having with friends. *Your thoughts and feedback would be appreciated. Homework Statement Blocks A and B are on a horizontal surface and connected to one another by a load cell. Block A has mass m1 and Block B has...
  6. B

    Blocks colliding momentum problem

    I'm studying for my first exam in Intro to Modern Physics. The question, along with the solution, is attached. Unfortunately I don't understand the solution. The solution changes to the rest frame of M, which I get. Then, it shows what happens after the collision and it seems like it breaks...
  7. S

    Newton's Second Law Lab with Pulley's and Blocks

    I did a lab earlier this week on Newton's second law with a pulley and carts. M2 was the block that traveled horizontally and M1 was the hanging mass. The mass of the cart that was moving horizontally was constant all experiment with about 0.2 kg. The mass of the hanging gradually increased...
  8. 1

    Blocks, pulleys, more friction woes

    Homework Statement Body A weighs 100 N, and body B weighs 35 N. The coefficients of friction between A and the incline are μs = 0.56 and μk = 0.25. Angle θ is 40°. Let the positive direction of an x-axis be up the incline. Find acceleration along x. Homework Equations The...
  9. D

    Three blocks connected by two strings: tensions?

    Homework Statement Three blocks on a frictionless surface are connected by strings like so (from left to right): Block 1 (m=10kg) to string with Tension 1 to Block 2 (m=20kg) to string with Tension 2 to Block 3 (m=30kg) to string with Tension 3. The blocks are pulled to the right with...
  10. A

    Tension in rope between blocks on an incline

    1. Two blocks made of different materials connected together by a thin rope, slide down a plane ramp inclined at an angle θ to the horizontal (block B is above block A). The masses of the blocks are mA and mB, and the coefficients of friction are μA and μB. If μA < μB, find the tension in terms...
  11. D

    Two blocks with spring (no friction), force applied: displacement?

    Homework Statement A 2kg block & 3kg block (left & right, respectively) are on a horizontal frictionless surface connected by a spring with K=140 N/m. A 15N force is applied to the 3kg block towards the right. How much does the spring stretch from its equilibrium length? Homework...
  12. J

    Find the acceleration of the blocks

    Homework Statement Find the acceleration of the blocks if a horizontal force of 10 N is applied on the 7 kg block. u1, u2 and u3 are the coefficients of friction. refer diagram. thanks in advance Homework Equations The Attempt at a Solution the force of friction between 7 kg...
  13. Femme_physics

    Can I treat blocks as a single axis of rotation?

    Can I treat "blocks" as a single axis of rotation? http://img171.imageshack.us/img171/2245/blockthingy.jpg Basically those A and B wooden blocks are pressed against two hardened steel plates through the tension of the bolt. My question, can I treat these blocks as a single point? For...
  14. C

    Blocks on Inclined Ramp Connected by Pulley

    Homework Statement Two blocks of equal mass are connected by a rope of negligible mass that is passed over a frictionless pully. The angle made by the horizontal plane and the ramp is 30 degrees. a) If neither block moves, what is the required coefficient of static friction to keep the...
  15. V

    What acceleration of blocks in given condition.

    see this image https://docs.google.com/leaf?id=0B5ZURGN4IHlTZWIxN2Q5NzEtNzQxZC00NTFkLWFkNDAtMTZmMDU5ZGIwOGQx&hl=en_GB&authkey=CL3RqN4O" something about question:=> a block M1 placed over M2 Nd M2 placed on the earth.A constant force F is applied in upward direction. You have to tell about...
  16. I

    What blocks electromagnetic waves in the double-slit experiment?

    In the double slit experiment, a wave is forced to go through a tiny slit. I do not understand what is stopping it from going through the barrier. After all, we can think of an electromagnetic wave as just the electric/magnetic fields of a sinusoidally oscillating particle, evaluated using...
  17. Q

    What Do the Slanted Arrows Mean in Orbital Energy Levels?

    Ok, I know that the S, P, D, and F represent blocks (groups of elements) on the periodic table. I know that the numbers represent rows on the periodic table. But what about the arrows? What's with the business of "increasing energy"? Why are the arrows slanted...
  18. W

    Blocks on Spring without Friction

    A spring is stretched a distance of Dx = 40 cm beyond its relaxed length of xo by a force, F = 20 N. Attached to the end of the spring is an block of mass m = 12 kg, which rests on a horizontal frictionless surface. After a moment, the force is removed. a) What is the potential energy of...
  19. D

    Finding the Total Mass in the Accelerating Blocks Problem: A Scientific Analysis

    Homework Statement http://img823.imageshack.us/img823/5238/immaginelq.th.jpg Uploaded with ImageShack.us What horizontal force F must be constantly applied to M so that M_1 and M_2 do not move relative to M? neglet frictionHomework Equations The Attempt at a Solution Since M_2 is not moving...
  20. W

    Net Force on Top Block: 115.2 N

    Three blocks are bring accelerated upwards at 3.2m/s2, by a force applied to the bottom block as shown in the figure. The mass of the bottom block is 12kg, the mass of the middle block is 24 kg, and the top block is 36 kg. What is the net force on the top block? a.44.8 N b.67.2 N c.115.2 N...
  21. J

    Calculating Maximum Height of a Hanging Block on a Pulley System

    two blocks (2.2kg and 3.2kg) both hanging 1.80 m from the ground on a pulley(massless / frictionless) that is 4.80 m from the ground. What is the maximum height the smaller block (2.2kg) reaches, when the system is released? It appears that I need to find its velocity first of the system...
  22. W

    Calculating Acceleration and Tension in a Two-Block System with Friction

    A block of mass m1 = 2 kg and a block of mass m2 = 3 kg are tied together and are pulled from rest across the floor by a force of Fp = 30 N. The coefficient of friction of the blocks with the floor is µ = 0.23. a) What is the acceleration of the two blocks? For this question, I used...
  23. W

    Find the Kinetic Frictional Force on a 9kg Block on an Incline

    A wooden block of mass m = 9 kg starts from rest on an inclined plane sloped at an angle q from the horizontal. The block is originally located 5m from the bottom of the plane. If the block, undergoing constant acceleration down the ramp, slides to the bottom in t = 2 s, and q = 30°, what is the...
  24. M

    Find Acceleration of Blocks A & B | Homework Statement

    Homework Statement Question: 2 Blocks A and B are resting on a horizontal plane and connected by a cord as shown in figure. The Block A starts from rest and moves to the left with constant acceleration.It was observed that the Block B attains a velocity of 12 m/s after moving a distance...
  25. D

    Forces and Equilibrium : Find the force b/w the blocks?

    1. Two blocks are moved with constant velocity up the inclined plane with the help of force F as shown in the figure. Find the value of F and the force acting b/w the blocks. Homework Equations Nothing is given. The Attempt at a Solution I got the solution of the Force( F ) which...
  26. A

    How Does Mass Affect Friction in a Pulley System?

    Homework Statement http://img41.imageshack.us/img41/589/showmepl.gif Uploaded with ImageShack.us Masses m1 and m2 rest on a table 1.2 meters above the floor and are attached to m3 via a very light string and a frictionless pulley as shown above. The coefficient of static friction between...
  27. K

    Solving Blocks & Pulley Homework: Find Acceleration

    Homework Statement [PLAIN]http://img109.imageshack.us/img109/1267/picture2ae.png m_1 = 2kg m_2 = 6kg R = .25cm M = 10kg \theta = 30º \mu = 0.36 Find the acceleration of the system. Homework Equations The Attempt at a Solution m_1 a = T_1 - m_1 g \mu m_2 a = m_2 g \sin \theta - m_2 g \mu...
  28. D

    Calculating Acceleration and Tensions in a Blocks and Pulley System

    Homework Statement In the system shown below, there is a block of mass M = 4.4 kg resting on a horizontal ledge. The coefficient of kinetic friction between the ledge and the block is 0.25. The block is attached to a string that passes over a pulley, and the other end of the string is...
  29. T

    What is the equation for torque in a system with two blocks and a pulley?

    Homework Statement http://imgur.com/MaT4N Homework Equations Torque = Fr The Attempt at a Solution 1) I tried m2 g r - m1 g r = 1/2 M r^2 * (acceleration / r) didn't work 2)I tried replace the moment of inertia equation to above equation,still didn't work
  30. D

    Momentum problem of blocks and bullet

    Homework Statement In Figure (1), a 3.50 g bullet is fired horizontally at two blocks at rest on a frictionless table. The bullet passes through block 1 (mass 1.18 kg) and embeds itself in block 2 (mass 1.85 kg). The blocks end up with speeds v1 = 0.540 m/s and v2 = 1.47 m/s (Figure (2))...
  31. Z

    Spring, blocks and conservation of energy

    Homework Statement A mass M is in static equilibrium on a massless vertical spring as shown in the figure. A ball of mass m dropped from certain height sticks to the mass M after colliding with it. The oscillations they perform reach to height 'a' above the original level of scales & depth...
  32. Z

    Spring & Blocks: Max Friction Force & Oscillation

    I am stuck up in a situation created by me. Consider a block A resting on a smooth horizontal surface. There is another block B of the same size/mass resting over it. There is some friction present in between them, with coefficient of friction μ. A spring of spring constant K is attached to...
  33. D

    How Much Force Is Needed to Prevent the Smaller Block from Slipping?

    Homework Statement The two blocks (m = 12 kg and M = 98 kg) in Fig. 6-38 are not attached to each other. The coefficient of static friction between the blocks is μs = 0.37, but the surface beneath the larger block is frictionless. What is the minimum magnitude F of the horizontal force...
  34. E

    How Does Friction Affect the Motion of Blocks on an Inclined Plane?

    Homework Statement Two blocks with masses 4.00 kg and 8.00 kg are connected by a string and side down a 30.0 inclined plane. The coefficient of kinetic friction between the 4.00kg block and the plane is .25; tha between the 8.00kg block and the plane is .35. (a) Calculate the acceleration of...
  35. W

    What Is the Maximum Force Before the Top Block Slides Off?

    Three blocks (M, 2M, and 3M) are placed in contact on a horizontal frictionless surface. A constant force of magnitude F is applied to the box of mass M. There is friction between the surfaces of blocks 2M and 3M (μs = 0.26, μk = 0.15) so the three blocks accelerated together to the right. The...
  36. P

    Force&Friction- Two blocks stacked on top

    Hello, I have worked out this physics problem. I then checked my answer, it was correct. However, I have a question about Part B which I will address once all of my information is given; Homework Statement A slab of mass m2 = 40kg, rests on a frictionless floor, and a block of mass m1 =...
  37. C

    Three blocks connected by strings

    Homework Statement Three identical blocks, each of mass 0.6 kg, are connected by light strings. Assume that they lie on a frictionless, horizontal surface and are observed to have an acceleration of 4.0 m/s2 under the action of a force F. Homework Equations Calculate F and two tension...
  38. T

    Blocks, Tension, Acceleration, Friction Problem

    Homework Statement Block B, with mass 5.00 kg, rests on block A, with mass 8.00 kg, which in turn is on a horizontal tabletop. There is no friction between block A and the tabletop, but the coefficient of static friction between block A and block B is 0.750. A light string attached to block A...
  39. T

    Find the Speed of Blocks A & B After Moving 2.70cm

    As shown in the figure , block A (mass 2.20kg ) rests on a tabletop. It is connected by a horizontal cord passing over a light, frictionless pulley to a hanging block B (mass 2.27kg ). The coefficient of kinetic friction between block A and the tabletop is 0.344. After the blocks are released...
  40. M

    What is the configuration of 3 blocks connected by a line and its balance?

    Homework Statement Last time I have had problem with one task: http://img543.imageshack.us/i/cosc.jpg/ They questioned us to determine compartments in with that configuration will be on balance. Informations: u-Friction alpha=30 Homework Equations If that configuration must be on...
  41. S

    Blocks on pulley on incline plane

    Homework Statement M1 and M2 are two masses connected as shown. The pulley is light (massless) and frictionless. Find the mass M1, given that M2 (3.5 kg) accelerates downwards at 2.77 m/s2, θ is 25o, and μk is 0.37. Homework Equations F = ma F = mg Ff = μkNThe Attempt at a Solution...
  42. M

    What is the contact force between the blocks?

    Homework Statement Two blocks are in contact on a frictionless, horizontal tabletop. An external force, F, is applied to block 1, and the two blocks are moving with a constant acceleration a = 2.45 m/s^2. Homework Equations what is the contact force between the blocks? The Attempt...
  43. Z

    Connected bodies - Spring and 2 blocks

    Homework Statement A block of mass m is connected to another block of mass M by a massless spring of spring constant k. The blocks are kept on a smooth horizontal plane. Initially, the blocks are at rest and the spring is unstretched when a constant force F starts acting on the block of mass M...
  44. I

    Find tension and acceleration of 2 blocks stacked

    Homework Statement A m1=7.47 kg block is placed on top of a m2=11.5 kg block. A horizontal force of 80.3 N is applied to the 11.5 kg block causing it to slide. The 7.47 kg block is tied to the wall by a string. The co-efficient of kinetic friction between all surfaces is 0.172. a)...
  45. F

    Fortran Understanding Common Blocks in Fortran 77

    Hi I'm having some trouble with understanding the whole concept of the common block in Fortran 77. Here is an example: common /hmat/ a,b,c,d It means that all the variables a,b,c,d are all contained in hmat. But does hmat need to be defined previously for the above example to make...
  46. C

    Tension and Acceleration on Blocks

    Homework Statement Three blocks are connected on a table as shown in the figure below. [img src="[PLAIN]http://i10.photobucket.com/albums/a122/gcfanatikk/8bc365ba.png"][/PLAIN] <-- oopsies, apparently I don't know how to embed pictures, help please? The table is rough and has a coefficient...
  47. E

    Blocks of empty space within the known universe

    Please share the information you have about this topic, post only valid articles and research. By "blocks of empty space within the known universe" I mean blocks of space that are free of both matter and light i.e. there is no light or matter within that space;empty and dark. And the known...
  48. J

    3 Blocks being pushed together by a force

    Homework Statement Three blocks on a frictionless horizontal surface are in contact with each other. the 1st mass touches the 2nd, the 2nd touches the 3rd. A force F is applied to the 1st block. Draw a free body diagram for the system, and each block individually. Determine the net force...
  49. Z

    Friction Problem involving 3 blocks

    Homework Statement Find the accelerations of the blocks shown in the figure when a force of 10N acts on the lower block. The Attempt at a Solution For the 3kg block, by drawing F.B.D. we get 3a = (0.3)x5x10 a=5m/s2 Similarly for the block of mass 7 kg, we get 7a = 10 - 5x0.3x10...
  50. M

    Friction between two stacked blocks

    Block A rests on block B, which lies on a flat frictionless surface. There is friction only between the two blocks. If I were to exert on block A a horizontal force of magnitude less than that of the maximum static frictional force between the two blocks so that for block A Fnet,x=0, then...
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