A sled of mass is pulled on level ground by a constant horizontal force
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A sled of mass m is pulled on level ground by a constant horizontal force F. When its speed becomes v, the instantaneous power is P. If the same force pulls a sled of mass 2m and the speed is again v, what will be the instantaneous power?
(a) 2P
(b) \dfrac{P}{2}
(c) P
(d) 4P