Biology
A ball is thrown horizontally with a speed of 25 m/s from the top of a tower 20 meters high. Assuming level ground below and negligible air resistance, what will be the magnitude of the vertical velocity component when the ball hits the ground?
A.25 m/s
B.15 m/s
C.20 m/s
D.50 m/s
E.10 m/s
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