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A car of mass m is driven with accelerat...

A car of mass `m` is driven with acceleration `a` along a straight level road against a constant external resistive force R. When the velocity of the car V, the rate at which the engine of the car is doing work will be

A

RV

B

maV

C

(R+ma)V

D

(ma-R)V

Text Solution

Verified by Experts

The correct Answer is:
C
F-R=ma
F=ma+R
P=FxV
P=(ma+R)V
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