Question

12 which of the following best defines an impulse? a a change in momentum. b a force exerted over a length of time. c inertia in motion d both a and b

Explanation:

Impulse is defined as the change in momentum of an object, and also as the force exerted over a time - interval ($J = F\Delta t=\Delta p$). Option A represents the change - in - momentum definition and option B represents the force - over - time definition.

Answer:

D. Both A and B