A tugboat of mass 8.0×105kg is initially at rest in still water. Its engines are capable of delivering a constant mechanical power of 3.0MW beginning at t=0. Neglect all forms of resistance.
a. Determine the speed of the tugboat after 120s have elapsed.
b. Calculate the distance the tugboat has traveled during this 120s interval.
c. Compute the average net force acting on the tugboat during the same time interval.