Homework Answers
x(t) = 2.8*t^2 - 0.011*t^3
So,
v = d x(t) / dt = 5.6*t - 0.33*t^2
So, for the car to come to stop, v = 0
So, 5.6*t - 0.33*t^2 = 0
So, t = 16.97 s <--------- answer
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