A major force opposing the motion of a vehicle is the rolling resistance of the tires F

Question:

A major force opposing the motion of a vehicle is the rolling resistance of the tires Fυ given by Fr= F W Where f is a constant called the rolling resistance coefficient and W is the vehicle weight. Determine the power, in kW, required to overcome rolling resistance for a truck weighing 322.5kN that is moving at 110 km/h. Let f= 0.0069.