Theory of Machine
The direction of Coriolis component of acceleration is the direction

Along perpendicular to angular velocity
Along tangential acceleration
Along the centripetal acceleration
Of relative velocity vector for the two coincident points rotated by 90° in the direction of the angular velocity of the rotation of the link

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Theory of Machine
The sense of Coriolis component 2 ωv is same as that of the relative velocity vector v rotated at

90° in the direction of rotation of the link containing the path
180° in the direction opposite to the rotation of the link containing the path
45° in the direction of rotation of the link containing the path
45° in the direction opposite to the rotation of the link containing the path

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