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OpenStudy (anonymous):
A ball is thrown vertically upward from the top of a 100 foot tower, with an initial velocity of 10 ft/sec. Its position function is s(t) = -16t2 + 10t + 100. What is its velocity in ft/sec when t = 2 seconds?
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OpenStudy (er.mohd.amir):
simply differentate with respect to t v=ds/dt and put t=2 get velocity at t=2
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