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Accelerated Linear Motion

  1. Sep 15, 2003 #1
    If anybody could offer any help with this id be eternally gratefull

    Two cars A and B, each 5m in length, travel with constant velocity 20 m/s along a straight level road. The front of car A is 15m directly behind the rear of car B. Immediately on reaching a point P, each car decelerates at 4m/s^2.
    1) Show that A collides with B
    2) At what distance from P does the collision occur?
    3) Show the motion of both cars on the same speed-time graph.

    Thanks in advance
  2. jcsd
  3. Sep 15, 2003 #2


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    Science Advisor

    The cars will collide at the point where they stop (B stops first and A stops at the same point). I'll leave the rest as an exercise in elementary calculus.
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