You throw a 143 g ball straight up to a height of 37.0 m. (a) Assume that the displacement of your hand is 0.70 m as you throw the ball straight up.

You throw a 143 g ball straight up to a height of 37.0 m.(a) Assume that the displacement of your hand is 0.70 m as you throw the ball straight up. How long is the ball is in your hand? (b) Calculate the average force exerted by your hand while you are throwing it.