A disc is rotating with angular velocity...

A disc is rotating with angular velocity `(vecomega)`.A force `vecF` acts at a point whose position vector with respect to the axis of rotation is `vecr`. The power associated with the torque due to the force is given by

`(vecr xx vecF).vecomega`

`(vecr xx vecF)xxvecomega`

`vecr.(vecFxxvecomega)`

`vecrxx(vecFxxvecomega)`

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