Power is the rate of energy (here, kinetic energy) =>
P=W/t= mv²/2t = 114•18.2²/2•2.7 = 6993 W = =9.37 hp
1 hp = 745.66272 W
The cheetah is one of the fastest-accelerating animals, because it can go from rest to 18.2 m/s (about 41 mi/h) in 2.7 s. If its mass is 114 kg, determine the average power developed by the cheetah during the acceleration phase of its motion. Express your answer in the following units
a) watts (w)
b) horsepower (hp)
1 answer
1 answer