A student (m = 66 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.04 s. The average force exerted on him by the ground is +18000 N, where the upward direction is taken to be the positive direction. From what height did the student fall? Assume that the only force acting on him during the collision is that due to the ground. H= i

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter5: Newton's Law Of Motion
Section: Chapter Questions
Problem 49P: A baseball catcher is performing a stunt for a television commercial. He will catch a baseball (mass...
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A student (m = 66 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to
rest in a time of 0.04 s. The average force exerted on him by the ground is +18000 N, where the upward direction is
taken to be the positive direction. From what height did the student fall? Assume that the only force acting on him
during the collision is that due to the ground.
H= i
Transcribed Image Text:A student (m = 66 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.04 s. The average force exerted on him by the ground is +18000 N, where the upward direction is taken to be the positive direction. From what height did the student fall? Assume that the only force acting on him during the collision is that due to the ground. H= i
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