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Math Help - Speed of moving object

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    Speed of moving object

    Please walk me through:

    The height s (in feet) of an object fored strait up from ground level with an initial velocity of 120 feet per second is given by s = -16t^2 + 150t, where t is time in seconds. How fast is teh object moving after 5 seconds?
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    Quote Originally Posted by dumplings View Post
    Please walk me through:

    The height s (in feet) of an object fored strait up from ground level with an initial velocity of 120 feet per second is given by s = -16t^2 + 150t, where t is time in seconds. How fast is teh object moving after 5 seconds?
    Is this a Calculus question?

    Then the velocity function is
    v = \frac{ds}{dt} = -32t + 150

    -Dan
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