A 5 kg block is lifted vertically through a height of 5 metre by a force of 60N. Determine (i) the work done by applied force in lifting the block, (ii) the potential energy of the block at 5m, (iii) the kinetic energy of the block at 5 m (iv) the velocity of the block at 5 m-

A body of mass 5 kg is lifted through a height of 20 m. Calculate the work done by the applied force.

A cord is used to vertically lower an initially stationary block of mass M at a constant downward acceleration of g/4. When the block has fallen a distance d, find (a) the work done by the cord's force on the block, (b) the work done by the graviational force on the block, (c) the kinitic energy of the block, and (d) the speed of the block.

A block of 2 kg is lifted up through 2m from the ground. Calculate the potential energy of the block at that point.

A block of 2 kg is lifted up through 2m from the ground. Calculate the potential energ of the block at that point.

A block of mass m at rest is acted upon by a force F for a time t. The kinetic energy of block after time t is

A block of mass m at rest is acted upon by a force F for a time t. The kinetic energy of block after time t is

A block of mass 5 kg is initially at rest on a rough horizontal surface. A force of 45 N acts over a distance of 2 m . The force of friction acting on the block is 25 N . The final kinetic energy of the block is