Theory of Machine
The example of lower pair is

Automobile steering gear
Straight line motion mechanisms
Shaft revolving in a bearing
All of these

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Theory of Machine
A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The total acceleration of B with respect to A will be equal to

Vector sum of radial component and Coriolis component
Vector difference of radial component and tangential component
Vector sum of radial component and tangential component
Vector sum of tangential component and Coriolis component

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