Use the worked example above to you solve this problem. an airboat with mass 4.30 102 kg, including the passenger, has an engine that produces a net horizontal force of 8.02 102 n, after accounting for forces of resistance. (a) find the acceleration of the airboat. m/s2 (b) starting from rest, how long does it take the airboat to reach a speed of 15.1 m/s?

a) a = 1,865 m / s²  and  b)  t = 8.1 s

Explanation:

a) Let's use Newton's second law to find acceleration, we can work the equation in scalar form because displacement and force have the same direction

         F = m .a

         a = F / m

         a = 8.02 10² /4.3 10²

         a = 1,865 m / s²

b) We use kinematic relationships in one dimension

        vf = vo + at

        vf = 0 + a t

         t = vf / a

          t = 15.1 / 1.865

          t = 8.1 s

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