aruthj2001otptxe aruthj2001otptxe

31-07-2017
Mathematics

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A ball is thrown vertically upward from the top of a 100-foot tower, with an initial velocity of 20 ft/sec. Its position function is s(t) = –16t2 + 20t + 100. What is its velocity in ft/sec when t = 1 second? (This is Calculus, involving limits, please help and explain, because I mostly just need to know how to do this. :) )

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Elielijah Elielijah

31-07-2017

the correct answer is A) -12 using ( f(a+h)-f(a) ) / h, plug in a = 1 and solve >> >> ( h(-32 - 16h +20) ) / h cancel and plug in h = 0 -12

hope it helps :-)

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