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Speed/Distance ecuation

  1. Apr 29, 2013 #1
    We have vehicles A and B

    A road with three lanes, two left only, going onto the highway, and the far right lane for straight only.
    After turning left, the cars from both lanes have to merge into one lane. The merge lane is 360 meters long.
    Both turning lanes have an equal number of cars.

    Car A is sopped at the last traffic light before entering the highway, 4th in cue.

    As soon as the light turns green, car B comes from the far right lane, changes lanes the front of all the cars and turns left into the highway.

    From the moment car B turned left, was driving with a constant speed of 90 km/h


    Car A, since it was 4th on cue, ended up the 8th on the merge lane
    Average speed of car A from the traffic light and before getting on the highway is 35km/h


    What is the speed car A needs to drive on the highway in order to to catch up with the car B
    Based on the speed, in what distance car A will be behind car B

    Thank you anticipated
  2. jcsd
  3. Apr 29, 2013 #2


    Staff: Mentor

    Per PM, this is not homework. The OP is not very knowledgeable in mathematics, and is asking for help.
  4. May 2, 2013 #3
    I copied your problem into my notepad and Ill try answering this once I got back from office. Goodluck to all! :D
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