a stone dropped freely from the top of a building takes 2s to reach the ground find height of the building .take acceleration due to gravity 9.8ms per socond square
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t = 2 seconds
equation of motion: s = u t + 1/2 a t²
s = 0 + 1/2 * 9.8 m/s² * 2²
= 19.6 meters
equation of motion: s = u t + 1/2 a t²
s = 0 + 1/2 * 9.8 m/s² * 2²
= 19.6 meters
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