A sailboat of mass m is initially at rest, i. e. v(0) = 0. Assume that the force of the wind on the sails in the direction of travel is given by Fw(t) = Bw[v0 − v(t)], where v0 = 2m/s is the magnitude of a strong wind (input to the system) starting at 0 s (i. e., v0 = 2us(t) is a step function of magnitude 2 m/s, where us(t) is the unit step function described in lecture). Assume that the viscous drag of the water on the ship is given by Fb(t) = Bdv(t).