 # Q.The magnitude of velocities of the points on a rigid link is

• ADirectly proportional to the distance from the points to the instantaneous center and is parallel to the line joining the point to the instantaneous center
• BDirectly proportional to the distance from the points to the instantaneous center and is perpendicular to the line joining the point to the instantaneous center
• CInversely proportional to the distance from the points to the instantaneous center and is parallel to the line joining the point to the instantaneous center
• DInversely proportional to the distance from the points to the instantaneous center and is perpendicular to the line joining the point to the instantaneous center
Correct Answer : (D)

Inversely proportional to the distance from the points to the instantaneous center and is perpendicular to the line joining the point to the instantaneous center

Hints :

Inversely proportional to the distance from the points to the instantaneous center and is perpendicular to the line joining the point to the instantaneous center

The lower pairs are _________ pairs

For an involute gear, the ratio of base circle radius and pitch circle radius is equal to