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Mathematics, 10.02.2020 22:20 angellight4all

A highly elastic rubber ball is tossed at a moveable wooden wall panel that is initially at rest. The ball’s initial velocity is 6.00 m/s to the right. After the elastic collision, the ball returns with a velocity of 4.90 m/s to the left, while the panel moves 1.09 m/s to the right. Of the panel’s mass is 1.25 kg, what is the mass of the ball?

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