Question #347259

a stone is thrown horizontally from the roof of a building 15 m high with an initial speed of 5 m/s. How long will it take before the ball hits the ground?

Expert's answer

The time of motion is equal to the time of free falling:

"t=\\sqrt{\\frac{2h}{g}}=\\sqrt{\\frac{2*15}{9.8}}=1.75\\:\\rm s"

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