In a Davis steering gear, the distance between the pivots of the front axle is 1.2 metres and the wheel base is 2.7 metres. Find the inclination of the track arm to the longitudinal axis of the car, when it is moving along a straight path.

Mechanisms with Lower Pairs topics include: Lower pairs mechanisms, extracting straight line motionwith sliding pair, straight line and steering gear mechanisms. A lower pair is a pair where the connection between two elements is through the area of contact.  There are six types of lower pairs in spatial mechanisms: Spherical pair, Plane pair, Cylindrical pair, Revolute pair, Prismatic pair, Screw pair.  A spherical pair is a kinematic pair where one element of the pair is spherical and turns inside the other stationary element.  A higher pair is a kinematic pair in a mechanism that has... Show more

Mechanisms with Lower Pairs topics include: Lower pairs mechanisms, extracting straight line motionwith sliding pair, straight line and steering gear mechanisms.

A lower pair is a pair where the connection between two elements is through the area of contact. 

There are six types of lower pairs in spatial mechanisms: Spherical pair, Plane pair, Cylindrical pair, Revolute pair, Prismatic pair, Screw pair. 
A spherical pair is a kinematic pair where one element of the pair is spherical and turns inside the other stationary element. 
A higher pair is a kinematic pair in a mechanism that has two degrees of freedom (DOF). Higher pairs are more complex than lower pairs and involve non-contact interaction between elements. 

Some examples of higher pairs include:
A cylinder or sphere lying on a flat surface
The relative motion of a cam and follower
The point of contact between two involute gears meshing 

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