Post a New Question

Physics

posted by .

An athlete wants to complete the 4000 m run in 12.0 minutes. After exactly 10.0 minutes of running at a constant speed, she still has 800 m to go. If she then accelerates to 4.0 m/s^2, how much longer will it take her to complete the race?

  • Physics -

    She is traveling at 3200m/12(60)sec

    figure out that.

    d=vi*t+1/2 (4)t^2
    d is 800, vi is above, solve for t.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics Problem

    A runner hopes to complete the 10,000m run in less than 30 minutes. After exactly 27 minutes, there are still 1100m to go. The runner must then accelerate at 0.20 m/s^2 for how many seconds in order to achieve the desired time?
  2. physics

    A runner hopes to complete the 10,000m run in less than 30 minutes. After exactly 27 minutes, there are still 1100m to go. The runner must then accelerate at 0.20 m/s^2 for how many seconds in order to achieve the desired time?
  3. physics

    A runner hopes to complete a 10,000 m race in a time of 30 minutes. After running at a constant speed for exactly 27 minutes, there are still 1100 m to go. The runner then accelerates at 0.2 m/s2 for how many seconds in order to achieve …
  4. 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 …
  5. Math

    Natalie performs a chemistry experiment where she records the temperature of an ongoing reaction. The solution is 93.5º C after 3 minutes; 90º C after 5 minutes, 84.8 C after 9 minutes; 70.2º C after 18 minute; 54.4º C after 30 …
  6. math

    You are a member of your high school track team and you specialize as a long-distance runner. Your event is the 1500-meter run, also known as the metric mile, which you run at a constant rate. During one particular 1500-meter race …
  7. physics

    suppose you are able to run at a constant speed of 11mph how long would it take you to run a marathon which is 26.2 miles?
  8. physics

    One athlete in a race running on a long, straight track with a constant speed v1 is a distance d behind a second athlete running with a constant speed v2. Find the time t it takes the first athlete to overtake the second athlete, in …
  9. Maths

    An athlete takes 2 minutes and 15 seconds to jog around a 400m running track. At this speed, how long will it take them to run 12km
  10. Physics

    A runner hopes to complete the 10000-m run in less than 30min. After running at constant speed for exactly 27min, there are still 1200m to go. The runner must then accelerate at 0.20m/s^2 for how many seconds in order to achieve the …

More Similar Questions

Post a New Question