# physics

posted by .

A runner covers one lap of a circular track 40.0 m in diameter in 62.5 s. Suppose initially the runner starts by going in the north direction.
Assume the speed is constant for the first half-lap and then constant for the 2nd half-lap. Suppose instead the runner ran these same speeds and distances in a straight line (rather than turning around the track). Sketch the position vs. time graph for this situation.

## Similar Questions

1. ### Physics

A runner covers one lap of a circular track 40.0 m in diameter in 62.5s (a) for that lap what were her average speed and average velocity?
2. ### physics

A runner training for a race times 400 meter laps. Lap 1 60sec, Lap 2 57sec, Lap 3 55sec, Lap 4 53sec. What is the average velocity in meters per second?
3. ### physics

A runner circles a track of radius 50 m in 50 s moving at a constant rate. If the runner was initially moving north, what has been the runner's average acceleration when halfway around the track?
4. ### Physics

A runner of mass 51.5 kg starts from rest and accelerates with a constant acceleration of 1.35 m/s2 until she reaches a velocity of 5.7 m/s. She then continues running with this constant velocity. (Take the direction the runner is …
5. ### physics

1.Moving with uniform acceleration a body covers 150m during 10sec so thet it covers 24m during the 10th sec .What is the initial velocity and the acceleration of the body. 2.A runner travels 1.5 laps around a circular track of 50sec …
6. ### physics

Suppose runner A starts at the 0 degree mark on a circular track (circumference = 400m). And let runner B start at the 180 degree mark. If runner A starts running counter clockwise with acceleration 2m/s^2, and runner B runs clockwise …
7. ### Physics

A runner covers one lap of a circular track 40.0 in diameter in 63.3 . For that lap, what was her average velocity?
8. ### Physics

A running track consists of two straight 88.5m segments and two semicircles of radius 39.0m The distance a runner travels in one complete lap I calculated to be 422 m. How do you find the displacement in x.y of a runner who covers …
9. ### physics

A runner is moving at a constant speed of 8.00 m/s around a circular track. If the distance from the runner to the center of the track is 28.2 m, what is the centripetal acceleration of the runner?
10. ### physic

Suppose a runner completes one lap around a 400-m track in a time of 50 s. Calculate the average speed of the runner. please explain process

More Similar Questions