How many degrees of freedom exist in a
free body in space?
3
4
5
6
6
Degrees of freedom (mobility of
linkage) :
●The number of independent variables required to define motion or position of the system is known as degree of freedom of the system.
●A free body in space will have 6
degrees of freedom (3-translation and 3-rotation)
●
Hence, the correct option is (D).
&Key Points:-
●Lower pair = 1 DOF, Higher pair = 2
DOF, Spherical pair = 3 DOF.
●Number of restraints can never be
zero (joint is disconnected) or six (joint becomes solid).
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