Gabriel L.

asked • 10/29/20

The volleyball is played with a ball of about 270 g and 21 cm in diameter.

In one game, the ball ended up in a pool with so much strength that it almost reached the bottom of it and then went up to the surface.


a) The force exerted by the pool water on the ball.

b) The acceleration with which the ball rose to the surface.

c) Assuming that the density of the balloon was uniform, what part of it stood out from the water?

1 Expert Answer


Anthony T. answered • 10/29/20

5 (50)

Patient Math & Science Tutor

Anthony T.

I checked my own math and found a mistake. The diameter of the ball in meters is 0.105 m not 0.138m. The actual volume of the ball is 0.00485m^3. The buoyant force is 47.5N. The upward force is 1714 m/s^2. The fraction of the ball's volume out of water is 0.94. I apologize for the error.


Anthony T.

another correction, the upward acceleration is 1714 m/s^2 not the upward force.


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