A boy on a cliff 49m high drops a stone 1 second later he throws a second stone after the first they both hit the ground at same time with what speed did he throw the second stone

A boy on a cliff 49m high drops a stone 1 second later he throws a sec

1.	A boy on a cliff 49m high drops a stone 1 second later he throws a second stone after the first they both hit the ground at same time with what speed did he throw the second stone
Answer» For first stone h = 49m g = 9.8m/s² t = ? u = 0 apply h = UT + gt²/2 49 = 0 + 9.8t²/2 t² = 10 t = √10 = 3.16s for SECOND stone t = 3.16 - 1 = 2.16s h = 49m g = 9.8m/s² u = ? again apply h = ut + gt²/2 49 = u2.16 + 9.82.16²/2 49 = 2.16*u + 22.86 26.14/2.16 = u u = 12.10m/s

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A boy on a cliff 49m high drops a stone 1 second later he throws a second stone after the first they both hit the ground at same time with what speed did he throw the second stone

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