Degree of freedom

Questions:

1.Define degree of freedom.

2.How many degrees of restraint does a ball joint provide?

3.In a suspension, are five links necessary to provide five degrees of restraint?

Answers:

1.Degrees Of Freedom is defined as the number of independent translational and rotational movements a link can have relative to another link.

2.A ball joint provides three degrees of restraint.

3.YES. in case of simple tension-compression links, but links can be made to restraint multiple degrees of freedom like the blade trailing arm suspension, so a single link can be made to perform the function of multiple links