1. V^2 = Vo^2 + 2g*h. Vo = 0, g = 9.8 m/s^2, h = 80 m, V = ?.
2. 0.5g*t^2 = 80. g = 9.8 m/s^2, t = ?.
a body is dropped from rest at a heigth of 80m above the ground. (1)what is the speed just before it hits the ground?.(2)how long does it take to reach the ground?.
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Just give me d answer
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