natural frequency of vibration

position of balancing weights

moment of inertia

centripetal acceleration

at the instantaneous center of rotation, one rigid link rotates instantaneously relative to another for the configuration of mechanism considered

the two rigid links have no linear velocities relative to each other at the instantaneous centre

the two rigid links which have no linear velocity relative to each other at this center have the same linear velocity to the third rigid link

the double centre can be denoted either by 02 or Ol2, but proper selection should be made

right side pivot of this link

lift side pivot of this link

a point obtained by intersection on extending adjoining links

can't occur

4, 4

4, 5

5, 4

4, 6

a triangle

a point

two lines

a straight line