How does a lubricant reduce friction between moving parts of a machine?
The lubricant forms a thin film of surface between the moving parts so that they don't rub against each other directly
The friction is then reduced because the surfaces are no longer directly in contact; they are sliding on the lubricant film. The lubricant forms a thin film of surface between the moving parts so that they don't rub against each other directly This statement accurately describes the primary mechanism by which lubricants reduce friction.
Important Questions from Equilibrium and Friction
If in a planar system, only 2 reaction forces are acting, then the system is:-
By applying the static equations i.e. ∑H = 0, ∑V = 0 and ∑M = 0. To a determine structure, we may determine:
Which of the following is not a type of equilibrium?
Varingon’s theorem of moments states that if a number of coplanar forces acting on a particle are in equilibrium, then
A block of mass 4√2 kg is at rest on the inclined plane. The inclined plane is inclined at an angle of 135° from horizontal direction in anticlockwise direction. Determine the coefficient of friction so that block can start slide in downward direction, assume the acceleration of gravity as 10 m/s2.
