A 75 kg man jumps from a window 2.0 m above a sidewalk. The acceleration of gravity is 9.81 m/s² . a) What is his speed just before his feet strike the pavement? Answer in units of m/s. b) If the man jumps with his knees ana an- kles locked, the only cushion for his fall is approximately 0.44 cm in the pads of his feet. Calculate the magnitude of the average force exerted on him by the ground in this situation. Answer in units of N.
A 75 kg man jumps from a window 2.0 m above a sidewalk. The acceleration of gravity is 9.81 m/s² . a) What is his speed just before his feet strike the pavement? Answer in units of m/s. b) If the man jumps with his knees ana an- kles locked, the only cushion for his fall is approximately 0.44 cm in the pads of his feet. Calculate the magnitude of the average force exerted on him by the ground in this situation. Answer in units of N.
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter6: Applications Of Newton's Laws
Section: Chapter Questions
Problem 76P: The CERN particle accelerator is circular with a circumference of 7.0 km. (a) What is the...
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