A ping pong ball has a radius of 2.25cm and a mass of 3.45g. When the ball is pl

Question

A ping pong ball has a radius of 2.25cm and a mass of 3.45g. When the ball is placed a few centimeters below the surface of body of fresh water and released, the ball will accelerate upwards. A) determine the force necessary to keep the ball below the waters surface. B) determine the acceleration of the ball when it is released. C) if the ball is pushed further down into the water, it will eventually reach equilibrium. That is, at some depth, when released, the ball will not try to float upward nor try to sink. Determine this depth.

Explanation / Answer

A) F = .1151 N downwards B) 33.37 m/s^2

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