Theory of Machine
When two links are connected by a pin joint, their instantaneous center lies

At the pin joint
At the center of curvature
On their point of contact
At the center of circle

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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

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

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