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Old 03-16-2008, 10:44 AM
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PHYSICS Boat?

A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.30 s. At the end of this time, the boat continues for an additional 5.80 s with an acceleration of +0.518 m/s2. Following this, the boat accelerates at -1.49 m/s2 for 8.00 s.

(a) What is the velocity of the boat at t = 21.1 s?


(b) Find the total displacement of the boat.
I tried doing that
And i cannot figure it out
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