From a height of 20 meters, a tennis ball vertically downward with an initial speed of 10 m / s. What is the maximum height it will rise with an absolutely elastic impact?
To solve this problem, we will use the law of conservation of energy (EEC):
mgh + mV ^ 2/2 = mgh2
h2 = (gh + V ^ 2/2) / g
h2 = (200 + 50) / 10 = 25m
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