Question

A stone dropped from the roof of a building take 4 second to reach the ground. The height of the building is ?



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Answer 1

t = 4s

a = 10(g)

u = 0

s = ?

$s = ut + \frac{1}{2} a {t}^{2}$

$s = 0 \times 4 + \frac{1}{2} \times ( 10) \times {4}^{2}$

$s = 0 + ( 5)(16)$

$s = 80m$

so, height of building is 80metre

Answer 2

Explanation:

Yes bro I'm fine thank you ...Keep on answering and try to complete your 1000 answers .All the best