A stone is dropped from the roof of a building. It takes 4 second to reach the ground. Find the height of the building. (g=9.8ms-1)
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Answer:
39.2m
Explanation:
It's simple Math.
in 1 second, the stone travel 9.8m/sec
Since it takes 4 second to reach the ground, Answer would be 9.8 X 4 = 39.2
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