Asked by corey

A 65.0-kg runner has a speed of 5.20 m/s at one instant during a long-distance event. (a) what is the runner's kinetic energy at this instant? (b) if he doubles his speed to reach the finish line, by what factor does his kinetic energy change
Answered by drwls
(a) K.E. (1/2) M V^2 = ___ joules ?
(b) doubling V quadruples the kinetic energy.

You do the numbers.
Answered by Anonymous
87.88J
Answered by Princess
A 65.0-kg runner has a speed of 5.20 m/s at one instant during a long distance event (a) What is the runner’s kinetic energy at this instant? (b) If he doubles his speed to reach the finish line, by what factor does his kinetic energy change?
Answered by Anonymous
A 65.0 kg runner has a speed of 5.20 m/s at one instant during a long-distance event. What is the runner’s kinetic energy at this instant?
There are no AI answers yet. The ability to request AI answers is coming soon!