A test of an energy-absorbing bumper, a 1270 kg car is drive into a barrier at 8 kph. The duration of the impact is 0.4 sec and the car bounces back from the barrier at 1.6kph. What is the maginitide of the average horizontal force on the car during the impact

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter7: Dry Friction
Section: Chapter Questions
Problem 7.48P: Find the smallest distance d for which the hook will remain at rest when acted on by the force P....
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A test of an energy-absorbing bumper, a 1270 kg car is drive into a barrier at 8 kph. The duration of the impact is 0.4 sec and the car bounces back from the barrier at 1.6kph. What is the maginitide of the average horizontal force on the car during the impact?

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