Answer to Question #258525 in Physics for Marian

Question #258525

A pebble is dropped from the top of a 25-m tall building. How long will it take before the

pebble hits the ground?

Expert's answer

"h=\\dfrac{1}{2}gt^2,""t=\\sqrt{\\dfrac{2h}{g}}=\\sqrt{\\dfrac{2\\times25\\ m}{9.8\\ \\dfrac{m}{s^2}}}=2.26\\ s."

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