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A disc is rotating with angular velocity...

A disc is rotating with angular velocity `hatomega` about its axis. 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

`(vec(r )xx vec(F))vec(omega)`

B

`(vec(r )xx vec(F))xx omega`

C

`vec(r )xx(vec(F).vec(omega))`

D

`vec(r ).(vec(F)xx vec(omega))`

Text Solution

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The correct Answer is:
A
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