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Math Help - Velocity problem

  1. #1
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    Velocity problem

    A car goes up a hill and down the other side. The time it takes the car is 3.25 minutes (it starts at 0).
    The V(t) = .5t^2 -1.5t mi/min

    What was the minimum velocity in mph?

    When did it reach the top of the hill?

    How would I find these?.. I know how to work with them, I am just not sure on what I am looking for.
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  2. #2
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    Quote Originally Posted by Morgan82 View Post

    What was the minimum velocity in mph?

    find v'(t) = 0
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  3. #3
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    Quote Originally Posted by pickslides View Post
    find v'(t) = 0
    When the acceleration = 0?
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  4. #4
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    yep, although the answer requires a unit of mph, your question is in mpm.

    Make sure you convert it.
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