Question

A stone dropped from the to of the tower touches the ground in 4 sec. the height of the tower is about​

Answer 1

initial velocity = 0 m/s

acceleration due to gravity = 9.8 m/s

time = 4 s

s = ut + 1/2gt²

s = 0 + 1/2 × 9.8 × 16

s = 0 + 9.8 × 8

s = 78.4 m

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