Uni Physics
posted by David Gia .
Total mechanical energy of a flying rubber ball is 1692 J. It has a mass of 0.86 kg, and it is 8 m above the ground. Find the speed of the ball.

E = 0.5m*V^2 = 1692 J.
0.43*V^2 = 1692
V^2 = 3935
V = 62.7 m/s.
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