a car of mass M is driven with an acceleration along a straight level road against the constant external resistive force R . when the velocity of car is V, the rate at which engine of the car is doing work will be
(a) R.v
(b)ma.v
(c)R+ma . v
(d)ma-R . v
Answers
Answered by
0
Answer:
c will be the correct option
Answered by
5
Answer:
(R + ma )v
Explanation:
Answer: (R+ma)V
Force required to oppose resistive force R and move with acceleration a is R+maR+ma
Power of a body is defined as the rate at which the body can do the work. Power=Force ×× Velocity
=(R+ma)V
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