# physics

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A batter hits a pop-up straight up over home plate at an initial velocity of 29 m/s. The ball is caught by the catcher at the same height that it was hit. At what velocity will the ball land in the catcher's mitt?
none of these
29 m/s
14.5 m/s
-14.5 m/s
-29 m/s

• physics -

-29. Total energy is conserved so the kinetic energy (and v^2) when caught must be the same as when the ball was hit. However, the direction of the velocity changes from up to down.

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