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Math Help - I want the idea to solve this queation

  1. #1
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    I want the idea to solve this queation

    Hi all



    Q :
    Secretariat ran the Kentucky Derby with times for the quarter mile of 25.2 s , 24.0 s , 23.8 s , and 23.0 s .
    (A) Find his average speed during each quarter-mile segment .
    (B) Assming that Secretariat's instaneous speed at the finish line was the same as the average speed during the final quarter mile , fine his average acceleration for the entire race . ( Hint : recall that horeses in the Derby start from rest )


    I want the idea to solve this queation
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  2. #2
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    Quote Originally Posted by r-soy View Post
    Hi all



    Q :
    Secretariat ran the Kentucky Derby with times for the quarter mile of 25.2 s , 24.0 s , 23.8 s , and 23.0 s .
    (A) Find his average speed during each quarter-mile segment .
    (B) Assming that Secretariat's instaneous speed at the finish line was the same as the average speed during the final quarter mile , fine his average acceleration for the entire race . ( Hint : recall that horeses in the Derby start from rest )


    I want the idea to solve this queation
    (A) |\bar{v}| = \frac{|\Delta x|}{\Delta t}

    (B) \bar{a} = \frac{\Delta v}{\Delta t}
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