physics(please help)

There are a large ball and on top of it a small ball, when they both thrown together to high h, a large ball returns to hight h. To what hight does small ball reflect? (using hoec)

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  1. If the large ball returns to h, then the small ball returns to h also. However, in real life, the small ball will take on some of the energy of the large ball and go to a much greater height, and the large ball will not go as high.

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