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A 68.72-kg pitching machine (excluding the baseball) is placed on a frozen pond. The machine fires...

A 68.72-kg pitching machine (excluding the baseball) is placed on a frozen pond. The machine fires a 0.05-kg baseball with a speed of 32.99 m/s in the horizontal friction. What is the recoil speed in m/s of the pitching machine? (Assume negligible friction.)

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