How much power [W] is required to drag a sled horizontally at 3 miles per hour if the sled has a mass of 100 kg and the coefficient of friction is 0.15?

Answer 1

Speed (in m/s) times Force (in N) = power (in Watts).

The friction force is M*g*(0.15) = 147 N

Now compute the speed in m/s and finish the problem