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September 22, 2014

Homework Help: Physics

Posted by KJ on Wednesday, September 7, 2011 at 8:49pm.

A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.05 s. At the end of this time, the boat continues for an additional 6.15 s with an acceleration of +0.518 m/s2. Following this, the boat accelerates at -1.49 m/s2 for 8.50 s.

(a) What is the velocity of the boat at t = 21.7 s?
m/s
(b) Find the total displacement of the boat.

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