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Message: <blockquote data-quote="Physics" data-source="post: 2416943" data-attributes="member: 601974">...the end of this time, the boat conti? A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.30 s with an acceleration of +0.518 m/s2. Following this, the boat accelerates at -1.49 m/s2 for 8.60 s.(a) What is the velocity of the boat at t = 21.9 s?_____m/s(b) Find the total displacement of the boat.______m</blockquote>