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19 January, 23:59

A hoodlum throws a stone vertically downward with an initial speed v0 from the roof of a building, a height h above the ground. (a) how long does it take the stone to reach the ground? (b) what is the speed of the stone at impact? give your answers in terms of the given variables and g.

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  1. 20 January, 00:47
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    V2=u2+2as

    v2=144+600

    v2=744

    v=√744
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