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A car is moving along a straight level r...

A car is moving along a straight level road with constant speed. Then

A

the work done on the car is a.measure of.its gravitational P.E.

B

the work one on the car is zero.

C

the work done on the car cannot. be found

D

the work done on the'car is infinite.

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the work one on the car is zero.
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