What is the speed of the stone at impact

Reference no: EM13555365

A hoodlum throws a stone vertically downward with an initial speed of 12.0 m/s from the roof of a building,23.0 m above the ground.

a) How long does it take the stone to reachthe ground?
b) What is the speed of the stone at impact?

Reference no: EM13555365

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