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MCAT Physics Question — Impulse

What always corresponds to impulse?

I. change in momentum, mΔv
II. product of force applied and duration of applied force, FΔt
III. change in kinetic energy


a) I only

b) I and II only

c) I and III only

d) I, II, and III


Impulse refers to change in momentum, as well as the product of force applied and the duration of the applied force.

a) I only, incorrect, I and II are correct.

b) I and II, correct.

c) I and III, incorrect, Kinetic energy change does not characterize impulse.

d) I, II, and III, incorrect, See c).

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