Find the average velocity over the given time interval

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Reference no: EM131009216

1. Find the average velocity over the time interval [0,3] if the displacement is given by s(t)=t³-1.4t²+1.7t+5. Round your answer to two decimal places.

2. A particle moves in a straight line in such a way that the position in time is given by s(t)=t³-5.5t²+2.8t+1. Starting from time=0, when is the first time that the particle starts moving in the negative direction?

Reference no: EM131009216

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