Physics

posted by .

An athlete springs a circular 400.0 m track in 50.0 s. Asume he runs a constant speed.
a. What is his speed over the entire course?
b. What is the magnitude of his instantaneous velocity at any point along the circuit?
c. If he starts facing west and runs counterclockwise, what is his velocity halfway around the circle?
d. What is the average acceleration for one lap of the track?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A person walks first at a constant speed of 4.70 m/s along a straight line from point A to point B and then back along the line from B to A at a constant speed of 2.80 m/s. (a) What is her average speed over the entire trip?
  2. Physics

    A car is driven from point A to B at a constant speed of 25.0 m/s along a straight line, and then back from point B to A at a constant speed of 20.0 m/s. The values of the average speed over the entire trip is?
  3. college physics

    A car is driven from point A to B at a constant speed of 25.0 m/s along a straight line, and then back from point B to A at a constant speed of 20.0 m/s. The values of the average speed over the entire trip is?
  4. physics

    a person walks first a constant speed of 5.00m/s along a straight line from point A to point B and then back along the line from point B to A at a constant speed of 3.00m/s. (a) what is her average speed over the entire trip?
  5. physics

    A person walks first at a constant speed of 4.50 m/s along a straight line from point A to point B and then back along the line from B to A at a constant speed of 3.00 m/s. (a) What is her average speed over the entire (b) What is …
  6. physics

    A person walks first at a constant speed of 4.90 m/s along a straight line from point A to point B and then back along the line from B to A at a constant speed of 2.70 m/s. (a) What is her average speed over the entire trip?
  7. physics

    A person walks first at a constant speed of 4.90 m/s along a straight line from point A to point B and then back along the line from B to A at a constant speed of 2.70 m/s. (a) What is her average speed over the entire trip?
  8. Physics

    A track athlete runs exactly one complete lap of the track, 400 m circumfrence, in 4.35x10^1 seconds. What is the speed of the athlete , to two significant figures, if they are assumed to run with a constant velocity for the entire …
  9. Physics

    A track athlete runs exactly one complete lap of the track, 400 m circumfrence, in 4.02x10^1 seconds. What is the velocity of the athlete , to two significant figures, if they are assumed to run with a constant velocity for the entire …
  10. Physics

    Consider a circular track with a radius of 200 meters. A runner starts on the east side and runs around the track to a point diametrically opposite her starting point. -What is the magnitude of her displacement?

More Similar Questions