Question

A stone is dropped from the roof of a tall building. It takes 3 seconds to reach the
ground. Find the height of the building. (g=9.8 m/s)​

Answer 1

Answer:

hi

Explanation:

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Answer 2

t = 3s

g = 9.8m/s

u = 0m/s (free fall)

h = u×t²+1/2×g×t²

h = 0×3²+1/2×9.8×3²

h = 0×9+4.9×9

h = 0+44.1

h = 44.1m