2. 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
(d) becomes 16 times that of initial

Potential energy will not change as the road is leveled and the height of the body remains the same, although its speed increases.

So, correct answer is option (a).

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