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 is ‘V’, the rate at which the engine of the car is doing work will be
A
RV
B
maV
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Force required to move with constant velocity
∴ ∴ Power = FV
Force is required to oppose the resistive force R and also to accelerate the body of mass with acceleration
a.
∴ ∴ Power = 
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