Identical forces act for the same length of time on two different objects. The magnitude of the change in momentum of the lighter object is
A) exactly equal to the magnitude of the change in momentum of the larger mass.
B) smaller than the magnitude of the change in momentum of the larger mass, but not zero.
C) zero.
D) larger than the magnitude of the change in momentum of the larger mass.
E) There is not enough information to answer the question.

Question

Quizplus · Accepted Answer

The change in momentum, or impulse, is given by the product of the force and the time for which it acts (Δp = FΔt). Since the force and the time are identical for both objects, the magnitude of the change in momentum will be the same for both, regardless of their masses.

Identical Forces Act for the Same Length of Time on Two