both (a) and (b)
Reason — The force needed to stop a moving body in a definite time depends on the product of mass and velocity, which is called the linear momentum of the moving body. Thus, p = mv.
both (a) and (b)
Reason — The force needed to stop a moving body in a definite time depends on the product of mass and velocity, which is called the linear momentum of the moving body. Thus, p = mv.