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Homework Plss Help!

  1. Sep 28, 2005 #1
    so here are the two problems:

    1. a sports car accelerates from rest to 95 km/h in 6.2 s. What is its average acceleration in m/s2-->SQUARED?

    2. a sprinter accelerates from rest to 10.0m/s in 1.32s. what is her acceleration(a) in m/s2, and (b) in km/h2?

    plsss help me :cry: i need procedure so i can understand the explanation :redface: thanksss! :smile:
     
    Last edited: Sep 28, 2005
  2. jcsd
  3. Sep 28, 2005 #2
    Definition of average acceleration

    [tex] a_{avg} = \frac{\Delta v}{\Delta t} \ or \ \frac{v_f-v_i}{t_f-t_i}[/tex]

    You are given changes in velocity and changes in time. Simply divide.
     
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