a ball is dropped from the roof of a building It takes 10s to reach the ground Find the height of the building (g=9.8m/s^2)
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Answered by
4
u=0m/s
t=10s
g=9.8m/s^2
S=ut + 1/2at^2
=0×10+1/2×9.8×10
=0+4.9×10
=49 m
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Answered by
1
the answer is 490 m
we will use the formula
s=it+½gt²
u=0
t=10
g=9.8
we will use the formula
s=it+½gt²
u=0
t=10
g=9.8
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