A 20 g marble travels to the right at 0.4 ms-1 on a smooth, level surface. It collides head- on with a 60 g marble moving to the left at 0.2 ms-1. After collision, the 20 g marble rebounds at 0.1 ms-1. Find the velocity of the 60 g marble.
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0.4
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- Explanation:ЬЬЬёЩ
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