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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Originally Posted by navynukejones 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. $\displaystyle \frac{dP}{dt} = R~\frac{d}{dt} (t^2 + 3t)^2$ $\displaystyle = R~[2(t^2 + 3t) \cdot (2t + 3)] $ I'll leave it for you to simplify this. -Dan
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