6. Intro to Forces (Dynamics)
Forces & Kinematics
4:44 minutes
Problem 7
Textbook Question
Textbook QuestionYour 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 30 m/s strikes your head and stops in 1.5 ms. a.What is the magnitude of the force that stops the baseball?
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