An engine of a car can deliver power P. The minimum time in which the car can be accelerated from rest to a speed v is

Q: An engine of a car can deliver power P. The minimum time in which the car can be accelerated from rest to a speed v is

(a) P m v2

(b) 2 P m v2

(c) $ \frac{1}{2} m v^2 P $

(d) $ \frac{m v^2}{2 P}$

Ans: (d)