A speedboat starts from rest at 2.01m/s2 for 7.00s. At the end of this time, the boat continues for an additional6.00 s with an acceleration of +.518 m/s2. Followingthis, the boat accelerates at -1.49m/s2 for 8.00s.
a) What is the velocity of the boat at 21.00 s?
b) Find the total displacement of the boat.