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(Solved): 19. A speeding train engine of mass 12,000kg collides with a stationary train car of mass 6,000 ...




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19. A speeding train engine of mass collides with a stationary train car of mass . After the collision, the crashed train cars slide together for a distance of before coning to rest. By measuring the coefficient of friction, you determine that the wreckage experienced a friction force of as it came to rest. Use this forensic information to determine the initial velocity of the speeding train engine.


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