a brick falls from bab e khyber 15m high.how much time it will take to reach ground?
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s = 15 m
u = 0 m/s
a = 9.8 m/s²
t = ?
s = ut + ½at²
15 = 0×t + ½×9.8×t²
15 = 4.9t²
t² = 150/49 ≈ 3
t = √3 ≈ 1.732 s
u = 0 m/s
a = 9.8 m/s²
t = ?
s = ut + ½at²
15 = 0×t + ½×9.8×t²
15 = 4.9t²
t² = 150/49 ≈ 3
t = √3 ≈ 1.732 s
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