1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Dynamics 2/32

  1. Feb 8, 2012 #1
    Please help,

    A motorcycle patrolman starts from rest at A 5 seconds after a car, speeding at the constant rate of 124 km/h, passes point A. If the patrolman accelerates at the rate of 6.4 m/s2 until he reaches his maximum permissible speed of 147 km/h, which he maintains, calculate the distance s from point A to the point at which he overtakes the car.

    Thanks!
     
  2. jcsd
  3. Feb 9, 2012 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    welcome to pf!

    hi varsitymsb5! welcome to pf! :wink:

    use the standard constant acceleration equations for each vehicle (you'll need t in one to be t+5 in the other) …

    show us what you get! :smile:
     
  4. Feb 9, 2012 #3
    v=vnot+at
    147/3.6=6.4t
    t=6.38s
    s(car)=124/3.6t'
    s(moto)=147/3.6(t'-5)

    I'm stuck and not sure what to do next.
     
  5. Feb 9, 2012 #4

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    sorry, i'm not following this at all :confused:

    rewrite the words of the question into equations
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Dynamics 2/32
  1. Dynamics world (Replies: 0)

  2. Fluid dynamics problem (Replies: 2)

Loading...