A tennis ball is thrown vertically upward with an initial velocity 50m/s. it reaches the maximum height in 5 sec find the retardation of ball?
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Therefore, at maximum altitude the velocity of the ball must be zero. Question: A ball thrown vertically upward reaches a maximum height of 30 meters above the surface of Earth. At its maximum height, the speed of the ball is: Answer: 0 m/s.
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