Find the least horizontal force P to start motion of any part of the system of the three blocks resting upon one another as shown in figure The weights of blocks are `A = 300 N , B = 100 N` and `C = 200 N` .Between A and B , the coefficient of friction is `0.3` between B and C is `0.2` and between C and the ground is `0.1`

Block A and B of masses 5 kg and 10 kg are placed as shown in figure. If block A is pulled with 50 N. Find out acceleration of the A and B. If coefficient of friction between A and B is 0.5 and between B and ground is 0.4.

Blocks A and B of masses 5 kg and 10kg are placed as shown in figure. If block A is pulled with 50 N. Find out acceleration of the A and B. if coefficient of friction between A and B is 0.5and between B and ground is 0.4.

A block A with mass 100kg is resting on another block B of mass 200kg. As shown in figure a horizontal rope tied to a wall hold it. The coefficient of friction between A and B is 0.2 while coefficient of friction between B and the ground is 0.3 . the minimum required force F to start moving B will be.

Two block A and B are connected to a spring (force constant k = 480 N/m) and placed on a horizontal surface. Another block C is placed on B. The coefficient of friction between the floor and block A is mu_1 = 0.5 , whereas there is no friction between B and the floor. Coefficient of friction between C and B is mu_2 = 0.85 . Masses of the blocks are M_A = 50 kg, M_B = 28 kg and M_C = 2 kg . The system is held at rest with spring compressed by x_0 = 0.5 m . After the system is released, find the maximum speed of block B during subsequent motion.

A is a 100kg block, and B is a 200kg block. As shown in figure the block A is attached to a string tied to a wall. The coefficient of friction between A and B is 0.2 and the coefficient of fricition between B and floor is 0.3. Then calculate the minimum force required to move the block B. (take g=10m//s^(2) ).

A block A of mass 200 kg rest on a block B of mass 300 kg . A is tied with a horizontal string to a wall. Coefficient of friction between A and B is 0.25 and that between B and floor is 0.2 . The horizontal force F needed to move the block B is

A horizontal force of 10N is necessary to just hold a block stationary against as well. The coefficient of friction between the block and the wall is 0.2. The weight of the block is