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A 0.5 kg ball is thrown at 20 m/s. With what speed must a 2.5 kg ball be thrown so that it has the same momentum? A. 2 m/s B. 4 m/s C. 10 m/s D. 50 m/s
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A 0.5 kg ball is thrown at 20 m/s. With what speed must a 2.5 kg ball be thrown so that it has the s...
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