Answer to Question #284812 in Physics for Laudivin danger

Question #284812

An object is held in the hand at a height of 2.5 m above the ground and released

a) how long will it take to reach the ground

b) with what velocity will it hit the ground?

Expert's answer

a) The time is

"t=\\sqrt{2h\/g}=0.71\\text{ s}."

b) The velocity is

"v=\\sqrt{2gh}=7\\text{ m\/s}."

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