Originally posted by l0st-s0ul:
Car A travels at 100km/hr at 6000 RPM.
Car B travels at 100km/hr at 5000 RPM.
Assuming that both cars are similiar(gearing ratios, etc..) except their engines. Am i right to say that Car B is more powerful?
the rpm at whichever speed is not a determinant for the power of the engine.
if 2 cars have the same gear ratios, their rpm will always be the same at 100 km/hr irregardless of what horsepower each of them has.
the term "power" is a measure of how much energy an engine produces per unit time. putting aside issues like gear ratios and weight of the vehicle, a more accurate determinant of which engine is more powerful would be how fast each car in question takes 2 reach 100 km/hr. this effectively tells u how much energy an engine is producing within the same given time frame 2 propel the car from rest.