1700kg automobile moving at a constant speed of 15 m/s, the motor supplies 16 kW of power to overcome friction, wind resistance, etc. What power must be supplied if the car is to move up an 8.0% grade (8.0 m vertically for every 100 m horizontally). If power = force x velocity, can I somehow use gravity to help find power? I'm mainly looking for a jumpstart as I seem to be having a lot of problems with energy problems. Any help is much appreciated. Thank you.