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Chapter 2, Problem 38 A speedboat starts from rest and accelerates at +1.60 m/s2 for 6.42 s. At the end of this time, the boat continues for an additional 5.04 s with an acceleration of +0.572 m/s2. Following this, the boat accelerates at -1.29 m/s2 for 6.37 s. (a) What is the velocity of the boat at t 17.83 s? (b) Find the total displacement of the boat a1 a2 a3 +x xt x3 (a) Number Units (b) Number Units

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In first two phases speed of speedboat increases and in third phase speed decreases

abter 6-42 &e 2 obter aelcuhonel S.oy attfer mou 6.33 A Ca 17.83 A) V 13.s-(1.21 x 6.32) 2 149.63 m

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