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Thread: Please help with calculus homework!!!!!

  1. March 8th 2008, 03:16 PM #1
    navynukejones
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    Please help with calculus homework!!!!!

    Given P=Ri^2. If R=100Ohms and i varies according to i=t^2+3t, find the rate of change of the power with respect to time when t=2 seconds.
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  2. March 8th 2008, 04:26 PM #2
    topsquark
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    Quote Originally Posted by navynukejones View Post
    Given P=Ri^2. If R=100Ohms and i varies according to i=t^2+3t, find the rate of change of the power with respect to time when t=2 seconds.
    \frac{dP}{dt} = R~\frac{d}{dt} (t^2 + 3t)^2

    = R~[2(t^2 + 3t) \cdot (2t + 3)]

    I'll leave it for you to simplify this.

    -Dan
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