A car is accelerated on a levelled road and attains a velocity 4 times of its initial velocity. In this process the potential energy of the car
(a) does not change
(b) becomes twice to that of initial
(c) becomes 4 times that of initial
becomes 16 times that of initial

Question

A car is accelerated on a levelled road and attains a velocity 4 times of its initial velocity. In this process the potential energy of the car
(a)	does not change
(b)	becomes twice to that of initial
(c)	becomes 4 times that of initial
becomes 16 times that of initial

Accepted Answer

Answer is (a) does not change
Explanation:
Potential energy is the product of height, mass and gravity. Hence height is a factor in determining potential energy. Here the height does not change hence potential energy of the car does not change.

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