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Physics
Physics
Problem
A ball is dropped from rest from a height of
20
m
20\,\text{m}
20
m
above the ground. Calculate its speed after it has fallen
5
m
5\,\text{m}
5
m
. Take
g
=
9.8
m/s
2
g = 9.8\,\text{m/s}^2
g
=
9.8
m/s
2
.
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