How do potential energy and K.E. of a spring vary with displacement ? Is this variation different from variation in potential energy and K.E. of a body in free fall ?

How do meristic variations differ from substantive variations?

Potential energy of a body is given by (P.E.) =………

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 body is executing simple harmonic motion. At a displacement x from mean position, its potential energy is E_(1)=2J and at a displacement y from mean position, its potential energy is E_(2)=8J . The potential energy E at a displacement (x+y) from mean position is

The K.E. of an electron which is accelerated in a potential difference of 100V is

A body executes simple harmonic motion. At a displacement x, its potential energy is U_1 . At a displacement y, its potential energy is U_2 . What is the potential energy of the body at a displacement (x + y)?

A body executes simple harmonic motion. At a displacement x, its potential energy is U_1 . At a displacement y, its potential energy is U_2 . What is the potential energy of the body at a displacement (x + y)?

Figure shows variation of potential energy veses displacement graph. find correct statement