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Dynamics HW5 Solutions

Dynamics HW5 Solutions - Problem 5-1 Suppose that you...

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Problem 5-1: Suppose that you investigate an accident in which a 3000-lb car A struck a parked 2200-lb car B . All four of the car B ’s wheels were locked, and skid marks indicate that it slid 18 ft after the impact. If you estimate that the coefficient of kinetic friction between B ’s tires and the road to be 0.7 k µ = , and the coefficient of restitution of the impact to be 0.25 e = , what was A ’s velocity ( A v ) just before the impact? Assume that only one impact occurred.
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