A bock of mass 0.5 kg is pulled by 12 N force on a fixed block. Speed of block is constant. Find total contact force applied by lower block on upper block.

On a block of mass 10 kg a child applied a force of 5 N .Explain the position of block and kind of friction acts on it .

On a smooth horizontal surface a block A of mass 10kg is kept. On this block a second block B of mass 5kg is kept. The coefficient of friction between the two blocks is 0.4 .A horizontal force of 30N is applied on the lower block as shown. The force of friction between the blocks is

A rope AB of length 5 m and mass 2kg is atteched to a 6kg block kept on a smooth surface ad is pulled by a force of 40N. Find the force applied by the rope on the block

A rope AB of length 5 m and mass 2kg is atteched to a 6kg block kept on a smooth surface ad is pulled by a force of 40N. Find the force applied by the rope on the block

If 100 N force is applied to 10 kg block as shown is diagram, then the acceleration produced in lower block is

If 100 N force is applied to 10 kg block as shown is diagram, then the acceleration produced in lower block is

A block of mass 70kg is kept on a rough horizontal surface (mu=0.4) . A person is trying to pull the block by applying a horizontal force, but the block is not moving. The net contact force exerted by the surface on the block is F , then:

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?

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?