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I Relative velocities impact.

  1. Mar 1, 2017 #1

    Out of nowhere i started wondering about relativity, I got some question that made me curios.

    If we have 2 cars on the road, car A moving at speed 110, car B moving at speed 120 , if car B touched ( hit or tagged ) car A.
    Will it be the same impact or the damage done if car A was at speed 30 and car B at speed 40 ?
    Considering the two cars are identical.

    Im just a second year engineering student, didn't study much physics yet.
  2. jcsd
  3. Mar 1, 2017 #2


    Staff: Mentor


    The answer is yes. In both cases you could choose a reference frame where one car had speed zero and the other car speed 10.

    Motion is relative. There is no such thing as absolute speed.
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