Consider the system of 3 blocks , upon which an external frorce F is applied The force experienced by block C is

For the two blocks shown in the adjacent figure, an external force of 18N is applied on the lower block. Find the acceleratiion of the upper block.

The system of two blocks is at rest an shown in the figure. A variable Horizontal force is applied to the upper block. The maximum possible constant force exerted by the horizontal ground surface on the lower block is ( coefficient of friction for both the contracts is mu )

A block is placed on a rough floor and a horizontal force F is applied on it. The force of friction f by the floor on the block is measured for different values of F and a graph is plotted between them.

Two blocks A and B are lying on the table as shown in the figure. The coefficient of friciton between block A and block B is mu . The coefficient of friction between block B and ground also mu . An external force F is applied in the direction shown. The maximum value of the force F that can be applied without moving the blocks.

Blocks are in contact on a frictionless table. A horizontal force F=3N is applied to one block as shown. The force exerted by the smaller block m_(2) on block m_(1) is :

A force F is applied on a block kept at the smooth surface in contact with the wall. If the block is at rest, the forces applied by block on surface (1) is F_(1) and on surface (2) is F_(2) . Find (F_(1))/(F_(2)) (Take g=10 m//s^(2))

In the given arrangement, the normal force applied by block on the ground is

A small block of mass 20kg rests on a bigger block of mass 30kg , which lies on a smooth horizontal plane. Initially the whole system is at rest. The coefficient of friction between the blocks is 0.5 . The horizontal force F=50N is applied on the lower block. a. Find the work done by fricitonal force on upper block and on the lower block in t=2s . b. Is the magnitude of work done by the frictional force on upper and lower blocks same? c. Is the work done by the frictional force on the upper block converted to heat or mechanical energy or both?

Figure shows a block kept on a rough inclined plane. The maximum external force down the incline for which the block remains at rest is 1 N while the maximum external force up the incline for which the block is at rest is 7 N. The coefficient of static friction mu is:

A block of unknown mass is at rest on a rough, horizontal surface. A horizontal force F is applied to the block. The graph in the figure shows the acceleration of the block with respect to the applied force. The mass of the block is