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T Rex speed and momentum

  1. Dec 3, 2007 #1
    1. The problem statement, all variables and given/known data

    calculate speed and momentum of T REX. Time between footprints is 0.62s - there are 2 footprints in a 10m distance, speed is constant - I need to show that the maximum speed is about 8ms-1 - how to I go about doing this? Help I have no idea
    Its mass is 7000kg.

    2. Relevant equations


    3. The attempt at a solution

    8ms-1 = 0 + at but time is what time between footprints is only known time?
  2. jcsd
  3. Dec 3, 2007 #2


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    Gold Member

    They tell you that the speed is constant. Knowing this, can you use the time given and the distances given to find v? What formulas for v apply when v is constant?
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