Q3 A body falls freely from the top of a tower and takes 5 s to reach the ground. (a). Calculate the velocity with which it reaches the ground. (b). Calculate the height of the tower.
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Answer:
(a) = -9.8m/s
(b) = 122.5 m
Explanation:
s = ut +1/2gt²
s = o + 1/2(9.8)(5)²
s = 9.8 x 12.5 = 122.5 m
so height of tower will be 122.5 meters
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