Answer to Question #270448 in Physics for FutureBSP

Question #270448

Nikki drops her doll from the rooftop 10 m above the ground. Neglecting air resistance, how long it will take to reach the ground?

Expert's answer

"y=\\dfrac{1}{2}gt^2,""t=\\sqrt{\\dfrac{2y}{g}}=\\sqrt{\\dfrac{2\\times10\\ m}{9.8\\ \\dfrac{m}{s^2}}}=1.43\\ s."

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