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8.2 Exercise 9

Avg difficulty 2.5

A 22-g puck hits the wall of an air hockey table perpendicular to the wall with an initial speed of 14 m/s.The puck is in contact with the wall for 0.0055 s, and it rebounds from the wall with a speed of 14 m/s in the opposite direction.What is the magnitude of the average force exerted by the wall on the puck?

  1. 0.308 N
  2. 0.616 N
  3. 56 N
  4. 112 N

OpenStax College Physics 2e, 8.2 Impulse, exercise 9

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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.