The fundamental equation for correct steering is (where φ and α = Angle through which the axis of the outer wheel and inner wheel turns respectively, c = Distance between the pivots of the front axles, and d = Wheel base)
cotφ - cotα = c/b
When the two elements of a pair have __________ when in motion, it is said to a lower pair.
A combination of kinematic pairs, joined in such a way that the relative motion between the links is completely constrained, is called a