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What is the Speed of the Ball?

A 71 kg baseball player jumps straight up to catch a line drive.

If the 140 g ball is moving horizontally at 29 m/s, and the catch is made when the ballplayer is at the highest point of his leap, what is his speed immediately after stopping the ball?

Known variables:

(player) m1= 71 kg

(ball) m2 = 140 g or .140 kg

v1= 0

v2= 29 m/s


(71)v1 + (.140 x 29)  = (71 + .140)

v=.057 m/s



v= 5.2 cm/s

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