Posted by **maria** on Monday, October 2, 2006 at 11:04pm.

A runner, beginning at rest, completed a 50 m run with a final speed of 6 m/s. Assuming constant acceleration.

a) What was the average speed of the runner?

b) What was the runner's time?

c) What was the acceleration?

a) half the final speed

b) distance/(average speed)

c) (final speed)/(elapsed tme)

= (final speed/([distance/average speed)]

=(final speed)^2/[2*(distance)]

## Answer this Question

## Related Questions

- physics - Sprinting near the end of a race, a runner with a mass of 70 kg ...
- Physics - Runner A is running at a constant rate of 2.3 m/s when he passes ...
- physics - Runner A is running at a constant rate of 2.3 m/s when he passes ...
- Physics - At an instant, Runner 'A' runs at 6m/s with an acceleration of 2m/s^2...
- physics - A runner is moving at a constant speed of 8.00 m/s around a circular ...
- Physics - An 18-year-old runner can complete a 10.0-km course with an average ...
- physics - An 18-year-old runner can complete a 10.0-km course with an average ...
- Physics - An 18-year-old runner can complete a 10.0-km course with an average ...
- physics - An 18-year-old runner can complete a 10.0 km course with an average ...
- physics - An 18-year-old runner can complete a 10.0 km course with an average ...

More Related Questions