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A drag racer accelerates at a(t) = 86 ft/s. Assume that v(0) = 0 and s(0) = 0. a. Determine the position function for t2 0. b
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at =) do = 86 at uzo at Ans Given, a (t) = 86 ftlu? Now a(t) = du(t) - V = velocity -) du = 860t separate variables 5) Sdv =d Time when s= 300 Ft 7) 300 543t 2 - te ~ 300 43 2.641 twhen Ult) = 172 ) 866 =172 =) t=2 5 (2) = 43x2x2 = 43x4 = 172 Ft

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