9. Work & Energy
Power
9. Work & Energy Power
6PRACTICE PROBLEM
An 85 kg sprinter accelerates from rest to a peak speed of 9.2 m/s in 4.0 seconds. A 65 kg cheetah accelerates from rest to 27 m/s in 3.0 seconds. Determine the mean power output of the sprinter and the cheetah. The expression for average power is ∆E/∆t, where ∆t is the time interval.
An 85 kg sprinter accelerates from rest to a peak speed of 9.2 m/s in 4.0 seconds. A 65 kg cheetah accelerates from rest to 27 m/s in 3.0 seconds. Determine the mean power output of the sprinter and the cheetah. The expression for average power is ∆E/∆t, where ∆t is the time interval.