In order to overcome air friction and other mechanical friction, an automobile of mass 1500 kg requires a power of 20 hp from its engine to travel at 64 km/h on a level road. Assuming the friction remains the same, what power does the same automobile require to travel uphill on an incline of slope 1:10 at the same speed? Downhill on the same incline at the same speed?

Answer rating: 100% (QA)

Start with P Fv 20 hp 14920 Watts 64 kmhr 178 ms F Pv 149201... View the full answer