A 1000-kg car has a maximum power output of 120 hp. How steep a hill can it climb at a constant of 70 km/h if the frictional forces add up to 600 N?I already did the conversions of 120 hp to get 89,520 Watts and also 70 km/h converts to 19.44 m/s, so I do not know where to go from there. Any help on this would be appreciated. :]