A block hangs freely from the end of a spring. A boy then slowly pushes the block upwards so that the spring becomes strain free. The gain in gravitational potential energy of the block during this process is not equal to

A Weight W suspeded from a spring is raised through a height h so that the spring becomes just slack .If E was the energy of the stretched spring , then the gain in gravitational potential energy is

When a small block is suspended at the lower end of an elastic steel wire hanging form the celling, there is a loss in gravitational potential energy (U) of earth-block system then

One end of an unstretched vertical spring is attached to the ceiling and an object attached to the other end is slowly lowered to its equilibrium position. If S is the gain in spring energy and G is the loss in gravitational potential energy in the process, then

One end of an unstretched vertical spring is attached to the ceiling and an object attached to the other end is slowly lowered to its equilibrium position. If S is the gain in spring energy and G is the loss in gravitational potential energy in the process, then

Two blocks of masses m_(1) and m_(2) are kept on a smooth horizontal table as shown in figure. Block of mass m_(1) (but not m_(2) is fastened to the spring. If now both the blocks are pushed to the left so that the spring is compressed a distance d. The amplitude of oscillatin of block of mass m_(1) after the system is released is

Two blocks of masses m_(1) and m_(2) are kept on a smooth horizontal table as shown in figure. Block of mass m_(1) (but not m_(2) is fastened to the spring. If now both the blocks are pushed to the left so that the spring is compressed a distance d. The amplitude of oscillatin of block of mass m_(1) after the system is released is

A light spring is vertical and a mass less pan is attached to it. Force constant of the spring is k. A block of mass m is gently dropped on the pan. Plot the variation of spring potential energy, gravitation potential energy and the total potential energy of the system as a function of displacement (x) of the block. For gravitational potential energy take referece level to the initial postion of the pan.

A block of mass m held touching the upper end of a light spring of force constant K as shown in figure. Find the maximum potential energy stored in the spring if the block is released suddenly on the spring.

A block of mass m held touching the upper end of a light spring of force constant K as shown in figure. Find the maximum potential energy stored in the spring if the block is released suddenly on the spring.