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 :

A disc is rotating with angular velocity vecomega. A force vecF acts a

1.	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 :
Answer» <P>`(vecrxxvecF)xxvecomega` `(vecrxxvecF).vecomega` `VECR.(vecFxxvecomega)` `vecrxx(vecF.vecomega)` SOLUTION :`vectau=vecrxxvecFandP=vectauxxvecomega` `THEREFORE P=(vecrxxvecF).vecomega`

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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 :

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