1. A 75 kg person pushed a 50kg box up a 30-deg incline with 0.25 coefficient of kinetic friction The person and box were moved X meters along the incline at a constant speed of 0.7 m/S Find the power exerted by the person to move the body and box up 12 meters. Power = Joules/s = Work-energy/ time. = vo*t+0.5*a*t*T+ initial, v^2=0^2=2*a*x W = F*distance*cos. KE = 0.5*m*v*v. PE = m*9.8*h. Triction = coetticient*m 9.8 cos 2. If it took 10 sec with 3 meter upward distance along the incline to reach the constant speed of 0.7 m/S, find the average power in the pre-0.7 m/s initial stage