Question

A boy standing at the top of a tower 20 m high throw a
ball with speed 10-15 m/s vertically upwards. The ball
will hit the ground with the speed of (g = 10 m/s2)
30 m/s
2015 m/s
40 m/s
35 m/s​

Answer 1

Answer:

30m/s

Explanation:

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