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Asked by Anonymous

A 4.0-kg particle is moving horizontally with a speed of 5.0 m/s when it strikes a vertical wall. The particle rebounds with a speed of 3.0 m/s. What is the magnitude of the impulse delivered to the particle?
13 years ago

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Answered by Damon
I will help with this, then you do the rest.

impulse = change in momentum = force * time

initial momentum = 4*5 = 20
final momentum = 4*-3 = -12

change = -12 - 20 = -32
magnitude of change of momentum = impulse = 32
13 years ago

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