If the force and the velocity on a system are each reduced simultaneously by half, the power of the system is
The correct answer is: B
Explanation
The Relation between Power, Force and Velocity is given by the relation:
P = F.V , this power is the product of force and velocity.
Therefore, The power of the system is reduced to one-quarter of its original value when both the force and the velocity are reduced by half.
There is an explanation video available .