Home Physics Work, Energy, Power and Collision Mix One end of a light spring of stiffness k is …
Physics Work, Energy, Power and Collision Mix MCQ (Single Correct)

One end of a light spring of stiffness k is fixed to a wall and the other end is tied to a block placed on a smooth displacement x is 1/2 kx 2 . The possible cases may be

A
The spring was initially compressed by x and finally it has acquired natural state.
B
The spring was initially stretched by x and finally in natural state.
C
The spring was initially in natural state and finally compressed by x.
D
The spring was initially in natural state and finally stretched by x.

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(a, b, c, d)

we do the work on spring.

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