# Power1 - Power The equation for rotational power can be...

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Power The equation for rotational power can be easily derived from the linear equation for power. Recall that P = Fv is the equation that gives us instantaneous power. Similarly, in the rotational case: P = τσ With the equation for rotational power we have generated rotational analogues to every dynamic equation we derived in linear motion and completed our study of rotational dynamics. To provide a summary of our results, the two sets of equations, linear and rotational, are given below: Linear Motion: F = ma W = Fx K = mv 2 P = Fv Rotational Motion: τ = W = τμ K = 2 P = τσ Equipped with these equations, we can now turn to the complicated case of combined rotational and translational motion. Combined Rotational and Translational Motion We have studied rotation on its own, and translation on its own, but what happens when the two are combined? In this section we study the case in which an object moves linearly, but in such a manner so that the object's axis of rotation remains unchanged. If the axis of rotation is changed,

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Power1 - Power The equation for rotational power can be...

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