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umm...
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Homework Statement
A stone is thrown from a building of height 40m and reaches a maximum height of 49m from the ground. The stone strikes the ground at a distance of 10m from the foot of the building. find the angle of elevation from which the stone is projected. Assuming the ground level is horizontal.
Homework Equations
Hmax=Vo2sin2θ/2g
The Attempt at a Solution
from the hmax formula i found Vosinθ=13.28m/s
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