Answer to Question #179355 in Classical Mechanics for Kristen Tyler

Classical Mechanics

Question #179355

How long does it take for a ball dropped off of a building of height 69.2 m to hit the ground if the ball starts it's fall from rest?

Expert's answer

Answer

By equation of motion

"S=ut+\\frac{1}{2}gt^2"

Initially u=0m/s

So

"69.2=\\frac{1}{2}(9.81) t^2\\\\t=3.75s"

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