Students usually feel uncomfortable in Class XI- Newtons Laws of Motion - Constraint Relations. Here is the time to crack unconfortability in an easy manner and in an understanding manner. After completion of the class the student will definetely have a minimum idea how to crack constraint relations easily and also the student will come to know how to use and where to use it.
Constraints relation mean that two bodies (in this case the bodies which are attached to the pulley) are not free to move the way they want. The accelerations between them are dependent on each other. We need to find out the relationship to solve the problems of Newton’s laws of motion. The equations showing the relation of the motions of a system of bodies, in which one motion is constrained by the other motions, are called constrained relations. It may be interms of Displacements, velocities or Accelerations