Question: Two blocks with masses 4m and 7m are on a collision course with the same initial speeds vi. The block with mass 4m is traveling

Two blocks with masses 4m and 7m are on a collision course with the same initial speeds vi. The block with mass 4m is traveling to the left, and the 7m block is traveling to the right. They undergo a head-on elastic collision and each bounces back, retracing its original path. Find the final speeds of the particles. (Enter your answers in terms of vi, the initial speed of each mass.) v4m,f = vi v7m,f = vi

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