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The cheetah can reach a top speed of 114 km/h (71 mi/h)

  1. Sep 18, 2015 #1
    1. The problem statement, all variables and given/known data
    The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 50 m in a straight line, reaching a final speed of 85 km/h.

    (a) Determine the cheetah's average acceleration during the short sprint.

    (b) Find its displacement at
    t = 3.0 s.
    (Assume the cheetah maintains a constant acceleration throughout the sprint.)

    3. The attempt at a solution

    I've been using a velocity calculator but still getting the wrong answer and honestly i just don't know what I'm doing
     
  2. jcsd
  3. Sep 18, 2015 #2

    Bystander

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    Have you used consistent units?
     
  4. Sep 18, 2015 #3

    gneill

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    Staff: Mentor

    You haven't provided any insight as to what equations you are attempting to use, and haven't shown an actual attempt. We can't help if we can't see what you've attempted.
     
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