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Problem
Problem
A body is thrown horizontally from the top of a tower and strikes the ground after three seconds at an angle of
45
∘
45^\circ
4
5
∘
with the horizontal. Find the height of the tower and the speed with which the body was projected. Take
g
=
9.8
m/s
2
g = 9.8 \text{ m/s}^2
g
=
9.8
m/s
2
.
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