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. S

    Two Blocks Sliding: Find Accel & Tension

    Homework Statement Two blocks, of weights 3.6 N and 7.5 N, are connected by a massless string and slide down a 30° inclined plane. The coefficient of kinetic friction between the lighter block and the plane is 0.10; that between the heavier block and the plane is 0.20. Assuming that the...
  2. M

    What is the speed of M2 at t=1.75 s in a system of three blocks and two pulleys?

    Homework Statement three blocks are relased at t=0 from the position shown in the figure. Assume that there is no friction between the table and M2, and that the two pulleys are massless and frictionless. The masses are: M1 = 3.0 kg, M2 = 9.0 kg, M3 = 5.0 kg. M2 is the middle block...
  3. K

    Two blocks held against each other

    Homework Statement Two blocks m (16kg) and M (88kg) are as shown in the figure. If the co-efficient of friction b/w the blocks is 0.38 but the surface beneath the block is frictionless, what is the minimum force required to hold m against M? How would you go about solving this kind of a...
  4. R

    Minimum Force Required to Keep 2 Blocks Sliding on Frictionless Surface

    The two blocks shown above are sliding across a frictionless surface by a force F from the left. The two blocks are not attached but the coefficient of static friction between the two is μs = 0.39. The mass of the smaller block is m1 = 14 kg and the mass of the larger block is m2 = 80 kg. a)...
  5. F

    What Is the Tension and Kinetic Friction in This Blocks and Pulleys System?

    Three Blocks total, Two on sides hanging off the table, and one Block on table in the middle of the two outer blocks. . . symmetrical. block1 from left has a mass of M, hanging and connected to a pulley, which is the connected to Block 2(on a table) with Mass of 2M, Block three is also...
  6. I

    Two Blocks being pulled until one slips

    Homework Statement The coefficient of static friction is 0.621 between the two blocks shown. The coefficient of kinetic friction between the lower block and the floor is 0.129. Force F causes both blocks to cross a distance of 5.10 m, starting from rest. What is the least amount of time in...
  7. B

    How Do You Calculate the Mass of m2 on an Inclined Plane with Friction?

    Homework Statement Masses m1 and m2 are attached via a light string and pulley on an inclined plane as shown above. m1 has a value of 12 kg and moves down the plane at a constant velocity of 0.9 m/sec. The plane is tilted upwards at an angle of Θ = 26 °. The coefficient of static friction...
  8. T

    Stability in blocks - static equilibrium

    Hii, First of all, I'm from Brazil and my english is not so good! I've been studied the follwing problem for some months and until today I'm not find a solution! Please help me. I have some blocks (2D) stacked like in the figure below (attachment). In each block I have ONLY the weight...
  9. D

    How Does the Leftmost Block Affect the Middle Block in a Force Chain?

    Homework Statement Blocks of 1.0, 2.0, and 3.0 kg blocks are lined up on a table (1kg block being on the left, 2kg in the middle, 3kg being on the right). A rightward poiting 12 N force is applied to the leftmost block. What force does the leftmost block exert on the middle one? Homework...
  10. M

    How Should I Handle Friction When Calculating Forces Between Two Blocks?

    I have 2 blocks together: M1=3, M2=8 the friction of M1=6N, M2=16N Force applied= 26 N find total acceleration: ? magnitude of force M1 to M2? magnitude of acceleration for M1? force magnictude from M2 to M1? I know the following: M1 accel= M2 accel I am going to combined the masses M1 & M2...
  11. E

    Inclined Blocks Connected By a String

    Homework Statement The mass of block a or Ma is equal to 3.00 kg and the mass of block b or Mb is equal to 1.50 kg. The two blocks are connected by a string and are sitting on an incline of 38\circ with block b being the higher on the incline than block a. The string between them is taut. I...
  12. I

    Solve 3 Blocks Question Homework: F=MA

    Homework Statement Blocks with masses of 1 kg, 3 kg, and 6 kg are lined up in a row on a frictionless table. All three are pushed forward by a 17 N force applied to the 1 kg block. (a) How much force does the 3 kg block exert on the 6 kg block? (b) How much force does the 3 kg block exert...
  13. S

    Magnitudes of Blocks on Surface

    Homework Statement Three blocks are in contact with each other on a frictionless horizontal surface. A 402 N horizontal force is applied to the block with mass of 2.9 kg as shown in the figure below. The acceleration of gravity is 9.8 m/s2. a. What is the net force on the block with...
  14. C

    Solving Pulley & Block Problems: Acceleration of A

    Homework Statement Body A in Fig. 6-36 weighs 102 N, and body B weighs 32 N. The coefficients of friction between A and the incline are μs = .56 and μk = 0.25. Angle θ is 40°. Let the positive direction of an x-axis be down the slope. What is the acceleration of A if A is initially (a) at...
  15. T

    How Do You Calculate Tension in a System of Connected Blocks?

    Homework Statement three connected blocks are pulled to the right on a horizontal frictionless table by a force of magnitude T3 = 13.8 N. If m1 = 15.1 kg, m2 = 24.8 kg, and m3 = 30.5 kg, calculate (a) the magnitude of the system's acceleration, (b) the tension T1, and (c) the tension T2. (the...
  16. Z

    Use Newton's second law to find the net force acting on both blocks

    Homework Statement Two blocks with masses m1 = 1.10 kg and m2 = 3.20 kg are connected by a massless string. They are released from rest. The coefficient of kinetic friction between the upper block and the surface is 0.490. Assume that the pulley has a negligible mass and is frictionless, and...
  17. A

    Magnitude in force of two blocks connected by rope.

    Homework Statement Two blocks are connected by a rope F (Vertical in the drawing, with force F pulling on a rope, block 1 attached to that rope, then there ia another rope off the bottom of block 1 that attaches to block 2). The block starts from a rest and moves upward a distance of 3.00m in...
  18. M

    Solving the Kinetic Friction and Tension of Two Blocks

    Homework Statement Block A (M1-5 kg) is on a horizontal surface and block B (M2-2 kg)to the left resting on a 30 degree incline. the two are connected to each other by a mass-less rope over a massless pulley and are moving down hill (to the left) at constant velocity. a) Find the...
  19. M

    Newton's Laws with Friction: Two Blocks

    Homework Statement Part 1 Two blocks are in contact on a frictionless table. A horizontal force F is applied to M2, as shown. If M1 = 1.03 kg, M2 = 3.40 kg, and F = 5.10 N, find the size of the contact force between the two blocks...
  20. P

    Two blocks sliding on top of each other

    A 4 kg block is placed on top of a 8kg block, placed on a table with no friction,which is subject to force of 30N. What is the coefficient of friction needed between the two blocks so that the the top doesn't slide on the other one? What i did was find the acceleration of the bottom block and...
  21. J

    Do Weight Differences Affect Speed on a Frictionless Hill?

    Homework Statement A 1-lb block and a 100-lb block are placed side by side at the top of a frictionless hill. Each is given a very light tap to begin their race to the bottom of the hill. In the absence of air resistance, what can you conclude about the outcome of the race? Homework...
  22. M

    Accel of M3 Block on Pulley System w/M1, M2, & M3

    3 blocks are hanging on pulleys: O | \ | \ M3 \ \ O | \ | \...
  23. marcus

    Regge with curved blocks; diffeo symmetry; the Dittrich Bahr papers

    There's an interesting series of papers by Bahr and Dittrich, and a related video talk by Dittrich at the Planck Scale site. The papers bear on issues discussed in the Lewandowski thread. The first in the series is a good introduction to the rest. Here are some links and abstracts to show what...
  24. I

    Verifying the Limits of Newton's Second Law with Blocks

    Homework Statement Imagine that there is a slab (call it block 1) on top of which sits a block (call it block 2). The slab connects to a cable that passed through a pulley and attaches to another block (call it block 3), hanging freely. Assuming that the coefficient of kinetic friction is...
  25. G

    Pulleys, tension, and blocks oh my

    Homework Statement In the figure, the pulleys and the cords are light, all surfaces are frictionless, and the cords do not stretch. (a) How does the acceleration of block 1 compare with the acceleration of block 2? (Use a_2 for a2.) (b) The mass of block 2 is 1.22 kg. Find its acceleration as...
  26. A

    Maximum Overhang for Uniform Blocks

    Overhang of uniform blocks?? Homework Statement If you put a uniform block at the edge of a table. the center of the hlock must be over the table for the hlock not to fall off. (a) If you stack two identical blocks at the table edge, the center of the top block must be over the bottom block...
  27. P

    Solving Three Blocks on a Frictionless Surface

    Homework Statement Three blocks on a frictionless horizontal surface are in contact with each other as shown in Fig. 4-5. A force F is applied to block 1 (mass m1). (a) Draw a free-body diagram for eeach block. Determine (b) the acceleration of the system (in terms of m1, m2, m3), (c) the...
  28. B

    Where Can I Find Free CAD Blocks for Traffic Arrows?

    Does anyone know where I could download some free cad blocks for traffic arrows to be painted on a road. My company is doing a site plan for a new pizza hut and I have to alter the highway to have some turning lanes some turning arrows and strait arrows. Couldn't find any on Google...
  29. E

    Conservation of Energy involved with a spring and two blocks and a pulley.

    Homework Statement Two blocks, of masses M = 2.1 kg and 2M are connected to a spring of spring constant k = 210 N/m that has one end fixed, as shown in the figure below. The horizontal surface and the pulley are frictionless, and the pulley has negligible mass. The blocks are released from...
  30. C

    MATLAB Matlab: how to extract blocks from a large matrix

    Hi, I have a 24000x24000 sparse matrix. I want to extract 4 blocks out of it; (0,0) to (6000,6000) (6001,6001) to (12000,12000) (12001,12001) to (18000,18000) (18001,18001) to (24000,24000) By use of those my aim is to make a block diagonal matrix using MATLAB command 'blkdiag' . Can...
  31. C

    Forces and Pulleys of two blocks

    Homework Statement Two blocks are connected by a rope that passes over a set of pulleys. One block has a weight of 412N and the other has a weight of 908N. The rope and the pulleys are massless and there is no friction. (a) What is the acceleration of the lighter block? (b) Suppose that the...
  32. H

    Two blocks on top of eachother with pulleys

    Homework Statement A 3.0-kg block sits on top of a 5.0-kg block which is on a horizontal surface. The 5.0-kg block is pulled to the right with a force F. The coefficient of static friction between all surfaces is 0.60 and the kinetic coefficient is 0.36. a)What is the minimum value of F...
  33. B

    Blocks connected on a table - find acceleration and tension

    Homework Statement Three blocks are connected on a table as shown in Figure P5.50. The table is rough and has a coefficient of kinetic friction of 0.350. The pulleys are frictionless. Determine the magnitude of acceleration of each block. Determine the tension in the two cords...
  34. N

    Blocks are connected by thin strings with tensions

    Homework Statement Four blocks are on a horizontal surface. <---F2---B---Tx---A---Tz---D----Ty--C---F1--> The blocks are connected by thin strings with tensions Tx, Ty, Tz. The masses of the blocks are A=41.0 kg, B=21.0 kg, C=29.0 kg, D=39.0 kg. Two forces, F1=47.0N and F2=71.0N act on...
  35. K

    Finding equation of equlibrium for rod and two blocks

    Homework Statement A slender rod AB of weight W is attached to blocks A and B which move freely in the guides shown. The constant of the spring is k, and the spring is unstretched when \theta = 0. (a) Neglecting the weight of the blocks, derive an equation in W, k, l, and \theta which must be...
  36. A

    Calculating Force F Required for Frictionless Blocks to Remain at Rest

    Homework Statement What is the magnitude of force F (which is pushing from the left on M) required to keep M1 and M2 relatively at rest to M? Ignore all friction. See attached diagram Homework Equations Newton's laws The Attempt at a Solution Well...If M is at rest, M1...
  37. P

    Solving Acceleration of M1: Blocks and Pulleys

    Homework Statement Blocks of mass M1 and m2 (as shown in attachment) are connected by a system of frictionless pulleys by massless strings. What is the acceleration of M1? Homework Equations The Attempt at a Solution Let T1 be the tension in the first (higher) string, and T2 be...
  38. P

    Max Horizontal Force for Two Blocks to Accelerate Without Slipping

    Homework Statement A block of mass M_1 rests on a block of mass M_2 which lies on a frictionless table. The coefficient of friction between the blocks is \mu . What is the maximum horizontal force which can be applied to the lower ( M_2 ) block for the blocks to accelerate without...
  39. B

    How Do You Calculate Tension in a Pulley System on a Ramp?

    Homework Statement Two blocks,connected by a string over a pulley, slide along the frictionless ramp shown in the diagram. What is the tension in the string? Homework Equations \sumF=ma The Attempt at a Solution so i set up an equation for each mass m1=3kg \frac{Fg1+Ft}{m1}=a...
  40. T

    Two moving blocks, find small blocks final velocity

    Homework Statement A small block (mass m) slides down a circular path (radius R) which is cut into a large block (mass M), as shown. M rests on a table and both blocks slide without friction. The blocks are initially at rest, and m starts at the top of the path. Determine the velocity of m...
  41. J

    Algebraic expressiong for two blocks

    Homework Statement Two blocks are sliding to the right across a horizontal surface, as the drawing shows. In Case A the masses of both blocks are 2.2 kg. In Case B the mass of block 1, the block behind, is 7.0 kg, and the mass of block 2 is 3.5 kg. No frictional force acts on block 1 in either...
  42. P

    What Force Does the 4 kg Block Exert on the 7 kg Block?

    Homework Statement The horizontal surface on which the objects slide is frictionless. The acceleration of gravity is 9.8 m/s2. Three blocks are sliding on a frictionless horizontal surface: Fℓ----->[Block1-1kg][Block2-7kg][Block3-4kg]<--Fr If Fℓ = 29 N and Fr = 3 N, what is the...
  43. T

    3 blocks on a frictionless surface

    Homework Statement Blocks with masses of 0.54 kg, 2.16 kg, and 2.87 kg are lined up in a row on a frictionless table. All three are pushed forward by a 13.8 N force applied to the 1 kg block. How much force does the 2.16 kg block exert on the 2.87 kg block? Homework Equations...
  44. B

    AP Physics Free Response: Friction between two blocks

    Homework Statement Block A of mass 2M hangs from a cord that passes over a pulley and is connected to block B of mass 3M that is free to move on a frictionless horizontal surface. The pulley is a disk with frictionless bearings, having a radius R and moment of inertia 3MR^2. Block C if mass...
  45. S

    Coefficient of kinetic friction between the two blocks

    Homework Statement The coefficient of kinetic friction between the two blocks is 0.30. The surface of the table and pulleys are frictionless. m1=2 kg m2=3 kg m3=10 kg Homework Equations \SigmaF=ma T2-m3g=m3a T1-T2=m2a friction-T1=m1a The Attempt at a Solution T2=m3g+m3a...
  46. B

    How Do Wood Blocks Behave in a Collision on a Frictionless Surface?

    A block of wood of mass m1 = 0.15 kg slides to the right on a frictionless horizontal table with an unknown speed. It collides with a second piece of wood of mass m2 = 0.30 kg which is stationary and attached to a spring with a spring constant of k = 159.00 N/m. The two pieces of wood stick...
  47. C

    Solving Two 6.20 kg Blocks Connected by Pulley

    Homework Statement For the picture, go to http://s16.photobucket.com/albums/b21/arbilvoldy/pulley.jpg" . T1 is for the hanging string with mass m1, and T2 is for the string over the table with mass m2. Two 6.20 kg blocks are connected by a massless string over a pulley of radius 2.40 cm...
  48. K

    Calculating Block Velocity and Bullet Speed in Collision | Physics Homework

    Homework Statement An 8.52g bullet is fired into a 385g block that is initially at rest at the edge of a table of h = 1.03 m height. The bullet remains in the block, and after the impact the block lands d = 2.15 m from the bottom of the table. How much time does it take the block to reach...
  49. R

    Linear momentum- moving blocks and attatched spring

    Homework Statement In the figure below, block 1 (mass 1.6 kg) is moving rightward at 12 m/s and block 2 (mass 4.8 kg) is moving rightward at 2.8 m/s. The surface is frictionless, and a spring with spring constant of 1100 N/m is fixed to block 2. When the blocks collide, the compression of the...
  50. M

    2 Blocks Stacked, Pullied, Bottom Accelerating, Newton's 3rd

    Unfortunately this is due today, I will go work on another problem and watch these boards. And its not a last minute thing, I have been working on this since it was assigned... :cry: Homework Statement The lower block in Figure P8.28 is pulled on by a rope with a tension force of F = 28 N...
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