Math/Physics

posted by .

John is driving at a constant speed of 20.0 m/s when he passes Jane, who is traveling in the same direction at 15.0 m/s at the moment that John passes her. If Jane is accelerating at 2.0 m/s2, how far will Jane drive before she catches up to John? How much time passes from when John passes Jane until Jane catches back up with John? (You can assume all motion is on flat, level ground.)

  • Math/Physics -

    John distance=20*time
    Jane distance=15*time+1/2 a time^2

    set them equal, solve for time
    then solve for either distance in that time.

  • Math/Physics -

    Why the 1/2 in 1/2*a*time^2?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Business Statistics

    John & Jane are married. The probability that John watches a certain television show is .4. The probability that Jane watches the show is .5. The probability that John watches the show, given that Jane does, is .7. 1) find probability …
  2. Physics

    While John is traveling along an interstatehighway, he notices a 166 mi marker as he passes through town. Later John passes a 120 mi marker. What is the distance between town and John’s current location?
  3. physics

    While John is traveling along an interstate highway, he notices a 166 mi marker as he passes through town. Later John passes a 120 mi marker. What is the distance between town and John’s current location?
  4. physics

    While John is traveling along an interstate highway, he notices a 166 mi marker as he passes through town. Later John passes a 120 mi marker. What is John’s current position?
  5. Physics

    Jane and John, with masses of 50 kg and 60 kg, respectively, stand on a frictionless surfact 10 m apart. John pulls on a rope that connects him to Jane, giving Jane an acceleration of 0.92 m/s^2 toward him. (a) What is John's acceleration?
  6. physics

    Jane and John, with masses of 54kg and 63kg , respectively, stand on a frictionless surface 11m apart. John pulls on a rope that connects him to Jane, giving Jane an acceleration of 0.82m/s2 toward him. Part A What is the magnitude …
  7. Physics

    John is driving at a constant speed of 20.0 m/s when he passes Jane, who is traveling in the same direction at 15.0 m/s at the moment that John passes her. If Jane is accelerating at 2.0 m/s2, how far will Jane drive before she catches …
  8. physics

    Jane and John, with masses of 50kg and 68kg , respectively, stand on a frictionless surface 13m apart. John pulls on a rope that connects him to Jane, giving Jane an acceleration of 0.86m/s2 toward him. What is the magnitude of the …
  9. physics

    the age of jane and john add up to 25years.8years ago jane was twice as old as john.how old are they now?
  10. Math

    Two kids are liars, three are telling the truth. Jane: "if onln Joey doesn't lie,then either Jane or John do" joey:"jack lies as does Jane or Julia, John: if Julia is telling the truth then Jane or joey do as well jack: If you round …

More Similar Questions