Theory of Machine
When a slider moves on a fixed link having curved surface, their instantaneous centre lies

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

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Theory of Machine
The maximum fluctuation of speed is the

Sum of maximum and minimum speeds
Difference of the maximum and minimum speeds
Difference of minimum fluctuation of speed and the mean speed
Variations of speed above and below the mean resisting torque line

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