Post a New Question

Physics

posted by .

Distance runners often run around an approximately circular trajectory. However, since some runners are running at a larger radius than others, they must be given an advantage in the beginning so that the race is fair.

If the path of the runner running at a greatest radius of 20 m is 100 m long, how far behind in m should the runner at the smallest radius start? The smallest radius is 15 m.

  • Physics -

    distance will be proportional to radius.

    (perimeterofCircle=PI*2*radius)

    difference in perimeters=2PI*(20-15)

    so that distance is the how far behind should the inner radius be.

  • Physics -

    So, what is the answer?

  • Physics -

    I am not sure how you are calculating this problem since you wrote it in abbreviations so could you please explain again?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math(algebra)

    If you had to start and finish at the same line of a racetrack, which lane would you choose?
  2. math

    Weekly mileage totals 24 runners 10 15 20 25 30 35 40 45 50 55 60 Max- 55 Min -15 Q1 -20 Q2- 35 Q3- 40 1 What percent of runners run less than 40 miles a week?
  3. physics

    2 runners accelerate from rest to their top speeds. The 1st runner pat has an acceleration of 5.9 m/s^2 and reaches her top speed in 4 sec. The second runner steven accelerates at 4.4m/s^2 and takes 6.5 sec to reach his top speed the …
  4. physics!!!!!!!!!!

    If you ever watch track and field at the Olympics, you'll notice that the starting points of the runners are not even if the race is run on a curve and the runners have to run in lanes. This is to offset the fact that the distances …
  5. physics..............

    If you ever watch track and field at the Olympics, you'll notice that the starting points of the runners are not even if the race is run on a curve and the runners have to run in lanes. This is to offset the fact that the distances …
  6. Physics

    Two runners have a race. The first runner decides to run with his full speed v₁=9 m/s over the 250 meters of the race and then slows to v₂=7 m/s for the rest, since he's tired. The second runner wants to save energy, so …
  7. Math

    There are 100 runners, each given a distinct bib labeled 1 to 100. What is the most number of runners that we could arrange in a circle, such that the product of the numbers on the bibs of any 2 neighboring runners, is less than 1000?
  8. Math

    There are 100 runners, each given a distinct bib labeled 1 to 100. What is the most number of runners that we could arrange in a circle, such that the product of the numbers on the bibs of any 2 neighboring runners, is less than 1000?
  9. College Algrebra

    Joel can run around a 1/4 mi track in 66 sec. Jason can run around the track in 60 sec.If the runners start at the same point on the track and run in opposite directions, how long will it take the runners to cover 1/4 mile?
  10. Math

    A total of 45 412 runners participated in the Vancouver Sun Run. Of these runners, 0.85% completed the run in under 40 min. How many runners completed in under 40 mins?

More Similar Questions

Post a New Question