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. C

    Force Acceleration of Two Identical Blocks

    [Solved] Force Accelerating Two Identical Touching Blocks Homework Statement The two blocks are accelerating at a constant rate due to the force of the hand, and air resistance is ignored. I'll go beyond the question above and try to find why FB and FA are less than Fhand...
  2. J

    Blocks on a Pulley: Friction & Acceleration

    Homework Statement A 5.0 kg block on a table is attached to a 4.0 kg block by a light string which passes over a light frictionless pulley. The coefficient of kinetic friction between block 1 and the table is U_k= 0.30. At time t = 0, block 1 is moving toward the pulley with a speed of 0.1...
  3. P

    Maximizing Rotational Motion Energy

    Homework Statement In the figure, two blocks, of masses 2 kg and 3 kg, are connected by a light string which passes over a pulley of moment of inertia 4.00 E-3 kg m m and radius 0.05 m. The coefficient of friction for the table top is 0.30. The blocks are released from rest. Using energy...
  4. R

    Calculating Deceleration and Friction of Blocks A & B

    Homework Statement Block B has an initial velocity of 2.0 m/s to the right and is sliding across the surface of block A. Block A is resting on ideal, frictionless ice. Given the following, information: a) The rate of "deceleration" of block B b) The rate of acceleration of block A c)...
  5. J

    Rotational Energy, 2 blocks and a pulley (solid uniform sphere)

    Homework Statement Consider the system below. The mp = 20.0 kg 'pulley' is a solid uniform sphere of radius of 0.250 m with the frictionless axle passing through its diameter. The mass of the block on the incline is m1 = 16.0 kg , and the coefficient of kinetic friction between the two...
  6. M

    How Does Mass Affect Sliding Distance on a Frictional Surface?

    Homework Statement . Block A has a mass m and block B has a mass 2m. Block A is pressed against a spring to compress the spring by a distance x. It is then released such that the block eventually separates from the spring and it slides across a surface where the friction coefficient is µk...
  7. M

    Motion and Acceleration of Connected Blocks on an Inclined Plane with a Pulley

    Homework Statement 2 blocks connected by a cord passing over a small, frictionless pulley rest on frictionless planes. a.) Which way will the system move when the blocks are released from rest? b.) what is the acceleration of the blocks? *** picture a triangle with a 100kg block over its left...
  8. C

    Two blocks sliding past each other

    Homework Statement A 3.0kg block sits on top of a 5.0kg block which is on a horizontal surface. The two blocks are connected by a string; the string connects the top to the bottom with a pulley. The 5.0kg block is pulled to the right with a force. The coefficient of static friction between all...
  9. R

    Two Blocks: Force, Mass, and Acceleration

    Homework Statement Two blocks sit directly next to one another on a frictionless surface. Block 1 has a mass of 1.0 kg and block 2 has a mass of 2.0 kg. A person pushes block 1 with a force of 10.0 N. a) Determine the acceleration of the system b) Determine the force that block 1 exerts...
  10. I

    Side-by-Side Blocks with Force pushing it

    Homework Statement Three blocks are in contact with each other on a frictionless, horizontal surface. A horizontal force F is applied to m1. If m1= 2 kg, m2= 3 kg, m3= 4 kg, and F= 18 N, find (a) the acceleration of the blocks, (b) the resultant force on each block, and (c) the magnitude of...
  11. M

    Kinetic Energy and Colliding Blocks

    A 2.4 kg block with a kinetic energy of 48 J slides on a horizontal frictionless table and collides with a second block. The second block is made of a different material and is initially at rest. The two blocks stick together and after the collision have a kinetic energy of 36 J. Find the mass...
  12. Z

    Frictionless blocks and a pulley with force F

    Sort of urgent. I've been looking at this problem for days and it's due tomorrow afternoon. Homework Statement Draw a free body diagram for each of the masses. All surfaces are frictionless. The pulley is massless and frictionless. The connecting strings denoted by dotted lines are...
  13. K

    What is the acceleration of the upper block connected by a string?

    Homework Statement Two blocks are connected by a string as pictured in this link below http://session.masteringphysics.com/problemAsset/1176902/2/ch05.P070.jpg What is the upper block's acceleration if the coefficient of kinetic friction between the block and the table is 0.11? I am unsure of...
  14. T

    Two blocks connected by string passing over a pulley on an incline

    Homework Statement Two blocks, as shown below, are connected by a string of negligible mass passing over a pulley of radius 0.225 m and moment of inertia I. The block on the frictionless incline is moving up with a constant acceleration of 1.97 m/s2 on an angle of 35.1 degrees. m1 = 15.4...
  15. T

    2 non-rectangular blocks, friction, only gravity

    Homework Statement An attachment with the problem specifications, HW6 - C, is attached. Here is a link in case that is easier to view. http://www.flickr.com/photos/54849943@N04/5082480364/ agravity = 32.2 ft/s2 Homework Equations \SigmaFyA = mA*aA \SigmaFxA = 0 \SigmaFyB= 0...
  16. R

    Two Blocks on two inclines(Friction)

    Homework Statement A student has two ramps, both of which are at an angle of 30o. Ramp 1 is frictionless and ramp 2 has friction. The student also has two blocks, one for each ramp. She pushes the blocks up the ramps with the same initial velocity. The block on ramp 2 only travels a...
  17. P

    Work done by friction pushing blocks

    Homework Statement In the figure, a constant external force P = 170 N is applied to a 20-kg box, which is on a rough horizontal surface. The force pushes the box a distance of 8.0 m, in a time interval of 9.0 s, and the speed changes from ν1 = 0.4 m/s to ν2 = 3.0 m/s. The work done by...
  18. R

    Three Blocks on Frictionless Incline(Please check work)

    Homework Statement Three blocks are pushed up a frictionless plane that is inclined at an angle of 30 degrees with respect to the horizontal as shown below. The blocks move together with constant acceleration a = 3.0 m/s2. The masses of the blocks are: MA = MC = 1 kg, and MB = 2 kg. The next...
  19. C

    3 blocks no friction forces question

    Homework Statement [PLAIN]http://img834.imageshack.us/img834/6920/captureqt.jpg Homework Equations f=ma The Attempt at a Solution Fsum=Fl + Fr=(m1+m2+m3)a 26+-8=(2+8+4)a a=18/14=1.28571 f=ma f=4(1.28571)=5.14268N I know this is incorrect. The force of 4kg block pushes...
  20. N

    Inelastic collision blocks of wood

    1. a mass m1=5g moving to the right at a speed of 100m/s undergoes a perfectly inelastic collision with a block of wood, m2= 100g, at rest. what is the speed just after the collision? 2. if the mass and block of wood described in question #1 are parts of a ballistic pendulum of length 2m...
  21. J

    Tension problem: 2 ropes, 3 blocks

    Homework Statement The diagram is here http://img375.imageshack.us/img375/5930/tensionproblem.png What is the tension in the cord connecting B and C? How far does A move in the first 0.250 seconds of movement assuming it does not reach the pulley? Homework Equations F=ma The...
  22. U

    Conservation of Energy find the speed of the blocks

    Homework Statement In the figure the second block slides horizontally without friction while the first block falls. Use the Conservation of Energy to find the speed of the blocks after they have moved 2 meters, starting from rest. The falling block has mass 3 kg, the sliding block has mass 5...
  23. F

    Force Exerted by Blocks on a Frictionless Surface

    1. Homework Statement Blocks of mass 5, 10, and 25 kg are lined up from left to right in that order on a frictionless surface so each block is touching the next one. A rightward-pointing force of magnitude 14 N is applied to the left-most block. a) What is the magnitude of the force that...
  24. T

    What Determines the Acceleration of a 25 kg Block in a Pulley System?

    Homework Statement [PLAIN]https://wug-s.physics.uiuc.edu/cgi/courses/shell/common/showme.pl?cc/DuPage/phys2111/fall/homework/Ch-05-Newtons-Laws/blocks_on_pulleys/12.gif In the above picture, the masses are M1 = 10 kg, M2 = 15 kg, and M3 = 25 kg. The pulleys and strings are massless, there is...
  25. G

    Three blocks, two pulleys, on a incline

    Homework Statement The suspended 2.29 kg mass on the right is moving up, the 1.3 kg mass slides down the ramp, and the suspended 7.7 kg mass on the left is moving down. There is friction between the block and the ramp. The acceleration of gravity is 9.8 m/s2 . The pulleys are massless...
  26. G

    Force pushes three blocks, find mag of force exerted on last two blocks

    Homework Statement Three blocks in contact with each other are pushed across a rough horizontal surface by a 75 N force as shown. The acceleration of gravity is 9.8 m/s2 . [PLAIN]http://img178.imageshack.us/img178/6198/007ow.png If the coefficient of kinetic friction between each of...
  27. G

    Force pushes and pulls two blocks at an angle

    Homework Statement A force of 23.52 N pushes and pulls to blocks as shown in the figure below. The vertical contact surfaces between the two blocks are frictionless. The contact between the blocks and the horizontal surface has a coefficient of friction of 0.29. The acceleration of...
  28. 0

    Force Problem with tension, 2 blocks, and a rope that has mass.

    Homework Statement Two blocks m1= 9.4 kg and m2 = 4.9 kg are connected by a homogeneous rope that has a mass of mr = 1.42 kg. A constant vertical force, F = 184.9 N, is applied to the upper block. What is the magnitude of the acceleration of the system? What is the magnitude of the...
  29. P

    What Is the Acceleration of a Block in a Pulley System?

    Homework Statement A 24 kg block with a pulley attached slides along a firctionless surface. It is connected by a massless string to a 5.3 kg block via the arrangement shown. a) Find the acceleration of the 24 kg block. b) Find the tension in the connecting string. Homework Equations...
  30. U

    "Find Tension Force Between Two Hanging Blocks

    Homework Statement A block is hanging from a rope which has another rope connected to another block underneath. The top block has a mass of 60 Kg and the bottom block has a mass of 30 Kg. Both blocks are accelerated 1.2 m/s^2 upward. What is the tension force between the two blocks? (Assume...
  31. B

    Force with two blocks on a table.

    Homework Statement A force of 32.68 N pushes and pulls to blocks as shown in the figure below. The vertical contact surfaces between the two blocks are frictionless. The contact between the blocks and the horizontal surface has a coefficient of friction of 0.24. The acceleration of gravity...
  32. S

    3 blocks dragging with friction, find tension

    Homework Statement Three blocks are located on a horizontal table. The coefficient of kinetic friction between the blocks and the table is 0.126. They are connected by a massless cord, as shown in the figure below, and pulled to the right. The masses of the three blocks are m1 = 3.0 kg, m2 =...
  33. X

    Two blocks on a double incline plane

    Homework Statement See attachment Homework Equations F=MA T=MA? The Attempt at a Solution M1: N1=M1gSin(32) T=M1gCos(32) Now does this work?: T=MA M1A=M1gCos(32) and that would give me the acceleration for the X-axis and i could do the same for the Y-axis and get the...
  34. X

    One pulley attached between two blocks, both sliding on wood.

    Homework Statement See attachment! Homework Equations Fk=UkN The Attempt at a Solution I can't find a way to start this problem can someone guide me please!
  35. JJBladester

    Moving blocks on an incline - relative motion

    Homework Statement Block A starts moving downward to the left at a constant acceleration = 80mm/s2. At the same time block B moves along block A to the right at an acceleration of 120mm/s2 relative to block A. a) Determine the acceleration of block B. Answer: aB=52.5m/s2 b) Determine the...
  36. M

    Find Accel. of Blocks in Diagram

    Homework Statement In the given diagram find the accelaration of the small and large block respectively. Homework Equations The Attempt at a Solution
  37. J

    Are blocks (billets) of metal crystals?

    I work as a machinest and Mill mostly aluminum. I was wondering if the billets are Aluminum its crystalline form? Or just lots of Aluminum atoms held together by Metallic bond? thank you. Attached is a photo of Aluminum Block.
  38. S

    Question about Tension 100 identical blocks

    Each of 100 identical blocks sitting in a frictionless surface is connected to the next block by a massless string. The first block is pulled with a force 100 N. a) what is the tension in the string connecting block 100 to block 99 B) what is the tension in the string connecting block 50...
  39. M

    Maximum Pulling Force for Two Blocks and a Cord

    Homework Statement A block of mass 5.00kg rides on top of a second block of mass 10.0kg. A person attaches a string to the top block and pulls the system horizontally. Friction between the two blocks keeps the 5.00kg block from slipping off. If the coefficient of static friction is 0.350...
  40. H

    Finding acceleration of blocks in a pulley system

    I am a bit confused when doing questions about 2 masses connected by a pulley system. Sometimes i get the right answer when i use just one of the masses to get the acceleration but other times i have to use both masses to get the correct acceleration. How do you know when to use just one...
  41. M

    Rigid object under net torque: 2 blocks, pulley, on incline

    Homework Statement A block with mass m1=2.00kg is on a flat surface and a block of mass m2=6.00kg is on an incline and they are connected by a massless string over a pulley in the shape of a solid disk with a radius R=0.250m and mass M=10.0kg. The angle of the incline is \Theta=30o and the...
  42. S

    What is the solution for a Two Block and Pulley System?

    Homework Statement A block of mass m1 = 1 kg rests on a table with which it has a coefficient of friction µ = 0.77. A string attached to the block passes over a pulley to a block of mass m3 = 3 kg. The pulley is a uniform disk of mass m2 = 0.4 kg and radius 15 cm. As the mass m3 falls, the...
  43. M

    Finding acceleration of two blocks with pulleys

    Homework Statement In terms of m_1, m_2, and g , find the acceleration of the first block in the figure . There is no friction anywhere in the system. http://session.masteringphysics.com/problemAsset/1038627/5/YF-05-71.jpg Homework Equations The Attempt at a Solution I know...
  44. O

    What material can block a magnet's pull between two magnets?

    Many of you have done this in your past. Two magnets, one under a table, another on top of the table, and moving the one under will cause the one on top to move. Is there a material that, given the same thickness, will block this magnetic pull/repelling between the two magnets? Thanks.
  45. T

    Mental Road Blocks: Understanding Physics Faster

    I was just wondering what people thought the difference was in people who can seem to be able to understand physics faster? For example like Edward Witten, he took a lot of time off from physics to pursue other things such as political journalism. Then decided to go back to math and physics. If...
  46. F

    Fm1m2 = Fm3m2 - 14Force on Blocks: Find Magnitudes & Directions

    Homework Statement Blocks of mass 5, 10, and 25 kg are lined up from left to right in that order on a frictionless surface so each block is touching the next one. A rightward-pointing force of magnitude 14 N is applied to the left-most block. Homework Equations [a] What is the...
  47. M

    Maximum compression of spring in two-block collision

    I'm a TA in an introductory course of (classical) mechanics at the university. I've been baffled for the couple two hours at this problem, taken from Resnick, Halliday & Krane (Fourth Edition in english; it's the 3rd ed. in spanish). I initially solved the problem, thinking my reasoning was...
  48. S

    Two blocks sliding and the collision

    Homework Statement Two blocks are on a frictionless track with a vertical, quarter circle, and 30 degree incline. Released from rest at point A, 1 kg smaller block 1 slides to B and makes an inelastic collision with 5 kg stationary larger block 2. The collision sents block 2 up the ramp. The...
  49. N

    Two blocks with pulley, friction

    Homework Statement Consider the setup shown below. The blocks have masses 8.2 kg and 25 kg. The pulley has mass 5.9 kg, and is a uniform disc with radius 0.25 m. Assume the pulley to be fric- tionless, but the coefficient of friction between the block and the surface is 0.28.What is the...
  50. F

    Friction of Two Blocks and Rope Problem

    Homework Statement Two blocks are positioned according to the figure. Block A (80 lb) is attached to a rope as such that it doesn't slide or fall from block B (120lb). Compute the smallest value of Force to be applied on Block B for it to not move parallel to the inclined plane...
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