Review the source. Look at the video description of the torque vector as the cross product of the Force vector and the radius vector. (Right hand rule) One practical example would be a bicycle wheel held by a person standing on a platform that can rotate freely. With the bicycle wheel rotation and the person standing on the platform holding the bicycle wheel at arm's length (the radius vector) and the person holding the bicycle wheel tries to rotate the axle which causes the rotation of the platform clockwise or counter clockwise.
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