The friction I refer to is the friction per revolution of the wheel. The "big" refers to the diameter of the wheels, with the same width.jbriggs444 said:What source tells you that big wheels have a greater friction? And what dimension of "big" do you have in mind -- width, diameter, size of contact patch, weight?
Friction is the resistance or force that occurs when two surfaces come into contact and move against each other.
Friction calculation is important because it helps us understand and predict how objects will move on different surfaces. This information is useful in designing and improving various tools and machines.
The formula for determining wheel-surface friction is F = μN, where F is the frictional force, μ is the coefficient of friction, and N is the normal force between the wheel and surface.
The coefficient of friction is determined experimentally by measuring the amount of force required to move an object across a surface and dividing it by the normal force acting on the object.
The factors that can affect friction between a wheel and surface include the type of surface, the weight of the object, the speed and direction of movement, and the presence of any lubricants or contaminants on the surface.