When jumping down, you can seriously injure yourself if you land on stiff legs. One way to avoid injury is to bend your knees when landing to reduce the force of the impact. An 83.8-kg person just before making contact with the ground has a speed of 1.4 m/s. On a stiff-legged landing, it stops in 20.0 ms. Find the magnitude of the average net force acting on it during this time.

When jumping down, you can seriously injure yourself if you land on stiff legs. One way to avoid injury is to bend your knees when landing to reduce the force of the impact. An 83.8-kg person just before making contact with the ground has a speed of 1.4 m/s. On a stiff-legged landing, it stops in 20.0 ms. Find the magnitude of the average net force acting on it during this time.

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter8: Conservation Of Energy

Section: Chapter Questions

Problem 8.1OQ: You hold a slingshot at arms length, pull the light elastic band back to your chin, and release it...

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