Your forehead can withstand a force of about 6.0 kN before fracturing, while your cheekbone can withstand only about 1.3 kN. Suppose a 140 g baseball traveling at 40 m/s strikes your head at an angle of 20 degrees from the horizontal. The forehead can undergo a displacement of roughly about 0.75mm before a fracture and the cheekbone only about 0.2mm. What is the magnitude of the force that stops the baseball? What force does the baseball exert on your head? Explain. Are you in danger of a fracture if the ball hits you in the forehead? On the cheek? What is the time interval necessary for either the forehead or cheek bone to break based on the forces stated

Your forehead can withstand a force of about 6.0 kN before fracturing, while your cheekbone can withstand only about 1.3 kN. Suppose a 140 g baseball traveling at 40 m/s strikes your head at an angle of 20 degrees from the horizontal. The forehead can undergo a displacement of roughly about 0.75mm before a fracture and the cheekbone only about 0.2mm. What is the magnitude of the force that stops the baseball? What force does the baseball exert on your head? Explain. Are you in danger of a fracture if the ball hits you in the forehead? On the cheek? What is the time interval necessary for either the forehead or cheek bone to break based on the forces stated

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Description: Your forehead can withstand a force of about 6.0 kN before fracturing, while your cheekbone can withstand only about 1.3 kN. Suppose a 140 g baseball traveling at 40 m/s strikes your head at an angle of 20 degrees from the horizontal. The forehead ca

Classical Dynamics of Particles and Systems

5th Edition

ISBN:9780534408961

Author:Stephen T. Thornton, Jerry B. Marion

Publisher:Stephen T. Thornton, Jerry B. Marion

Chapter9: Dynamics Of A System Of Particles

Section: Chapter Questions

Problem 9.60P

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