Asked by Anonymous
a small brick mass 700 g is projected vertically downwards at a velocity of 1,25(m/s) from the top of a building of height 25m.calculate the magnitude of the velocity at which the brick hits the ground?
Answers
Answered by
Steve
we need
25-1.25t-4.9t^2 = 0
t=2.135
so, we have a final v of
v = -1.25 - 9.8(2.135) = ?
25-1.25t-4.9t^2 = 0
t=2.135
so, we have a final v of
v = -1.25 - 9.8(2.135) = ?
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