A runaway railroad car, with mass 3.0 3 105 kg, coasts
Chapter 15, Problem 6(choose chapter or problem)
A runaway railroad car, with mass 3.0 3 105 kg, coasts across a level track at 2.0 m/s when it collides elastically with a spring-loaded bumper at the end of the track. If the spring constant of the bumper is 2.0 3 106 N/m, what is the maximum compression of the spring during the collision? (a) 0.77 m (b) 0.58 m (c) 0.34 m (d) 1.07 m (e) 1.24 m
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