lands on a 10.5 cm thick gymnastics mat. The gymnast strikes the back of his head against the mat during his landing. His head is moving at 7.4 m/s when it first strikes the mat. The mass of his head is 5 kg. The impact ends when the gymnast’s head comes to a stop after deflecting the mat 6.1 cm. How much work does the mat do to stop the motion of the gymnast's head?
lands on a 10.5 cm thick gymnastics mat. The gymnast strikes the back of his head against the mat during his landing. His head is moving at 7.4 m/s when it first strikes the mat. The mass of his head is 5 kg. The impact ends when the gymnast’s head comes to a stop after deflecting the mat 6.1 cm. How much work does the mat do to stop the motion of the gymnast's head?
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter8: Conservation Of Energy
Section: Chapter Questions
Problem 3PQ
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A gymnast falls from the high bar and lands on a 10.5 cm thick gymnastics mat. The gymnast strikes the back of his head against the mat during his landing. His head is moving at 7.4 m/s when it first strikes the mat. The mass of his head is 5 kg. The impact ends when the gymnast’s head comes to a stop after deflecting the mat 6.1 cm.
How much work does the mat do to stop the motion of the gymnast's head?
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