The force exerted on a car by a prototype crash barrier crash is F=-(4400 + 50000S) N, where S in the distance in meters from the initial contract. Suppose that you want to design the barrier so it can stop a 2400kg car traveling at 100kph. Determine the average power transferred from the car during the impact if the duration of impact of the car is 0.33 sec.

The force exerted on a car by a prototype crash barrier crash is F=-(4400 + 50000S) N, where S in the distance in meters from the initial contract. Suppose that you want to design the barrier so it can stop a 2400kg car traveling at 100kph. Determine the average power transferred from the car during the impact if the duration of impact of the car is 0.33 sec.

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 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

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