Posted by **corey** on Thursday, March 1, 2012 at 11:56pm.

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

## Answer This Question

## Related Questions

- Physics - A 70.0-kg runner has a speed of 5.90 m/s at one instant during a long-...
- physics - A 57.5-kg runner has a speed of 5.80 m/s at one instant during a long-...
- physics - A 61.0-kg runner has a speed of 3.20 m/s at one instant during a long-...
- physics - A 56.0-kg runner has a speed of 3.10 m/s at one instant during a long-...
- physics - A 59.0-kg runner has a speed of 3.20 m/s at one instant during a long-...
- physics - A 62.0-kg runner has a speed of 4.90 m/s at one instant during a long-...
- Physics - At an instant, Runner 'A' runs at 6m/s with an acceleration of 2m/s^2...
- Physics - A runner is jogging at a steady 8.4 km/hr. When the runner is 2.6 km ...
- physics - A runner, beginning at rest, completed a 50 m run with a final speed ...
- physics - Sprinting near the end of a race, a runner with a mass of 70 kg ...

More Related Questions