A ceiling fan is rotating around a fixed axle | vedclass

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(D) To determine the direction of the angular velocity vector $\vec{\omega}$,we use the right-hand thumb rule.According to this rule,if we curl the fi

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$-\hat{k}$

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(D) To determine the direction of the angular velocity vector $\vec{\omega}$,we use the right-hand thumb rule.According to this rule,if we curl the fingers of our right hand in the direction of rotation of the fan,the thumb points in the direction of the angular velocity vector.In the given figure,the fan is rotating in a clockwise direction when viewed from above.Since the axle is along the $Z$-axis,the rotation occurs in the $XY$-plane.Applying the right-hand rule,the thumb points downwards,which is in the negative $Z$-direction.Therefore,the direction of angular velocity is along $-\hat{k}$.

$A$ ceiling fan is rotating around a fixed axle as shown. The direction of angular velocity is along $\qquad$

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