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8.2 Exercise 1

Avg difficulty 2.5

A 1.0-kg ball of putty is released from rest and falls vertically 1.5 m until it strikes a hard floor, where it comes to rest in a 0.045-s time interval. What is the magnitude and direction of the average force exerted on the ball by the floor during the collision?

  1. 33 N, up
  2. 120 N, up
  3. 120 N, down
  4. 240 N, down

OpenStax College Physics 2e, 8.2 Impulse, exercise 1

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.