Duduli

The constraints which are dependent on time are known as rheonomic constraints. e.g a simple pendulum suspended with a moving support i.e pendulum having variable length is an example of rheonomic constraint.

Constraints are said to be holonomic if constraints imposed on the motion of the system can be expressed in the form of mathematical equation f(r1,r2,.....,rn,t)=0.  where r1,r2,.....,rn are position vector of system of particles & 't' is time. Example of holonomic constraints  ★The constraints involved in the motion of rigid bodies in which the distance between two particular points is always fixed. ★The constraints involved when a particle is restricted to move along a curve of surface are holonomic.