Question

Difference between degree of freedom and mobility of mechanism

Answer 1

It has one degree of freedom, turning around point A. The two lost degrees of freedom are translational movements along the x and y axes. The only way the rigid body can move is to rotate about the fixed point A. In Figure 4-11b, a rigid body is constrained by a prismatic pair which allows only translational motion.

Answer 2

Explanation:

The DoF for a mechanism is defined as the number of coordinates or variables required to be specified such that the position and orientation of all the members of the mechanism can be stated as a function of time. ... Take the mechanism to be composed of 'n' members or links