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  2. Fourth power law - Wikipedia

    en.wikipedia.org/wiki/Fourth_power_law

    The fourth power law (also known as the fourth power rule) states that the stress on the road caused by a motor vehicle increases in proportion to the fourth power of its axle load. This law was discovered in the course of a series of scientific experiments in the United States in the late 1950s and was decisive for the development of standard ...

  3. Ohm's law - Wikipedia

    en.wikipedia.org/wiki/Ohm's_law

    Ohm's law has been observed on a wide range of length scales. In the early 20th century, it was thought that Ohm's law would fail at the atomic scale, but experiments have not borne out this expectation. As of 2012, researchers have demonstrated that Ohm's law works for silicon wires as small as four atoms wide and one atom high. [17]

  4. Slider-crank linkage - Wikipedia

    en.wikipedia.org/wiki/Slider-crank_linkage

    These equations express the link lengths, L 1, L 2, and L 3, as a function of the stroke,(ΔR 4) max, the imbalance angle, β, and the angle of an arbitrary line M, θ M. Arbitrary line M is a designer-unique line that runs through the crank pivot point and the extreme retracted slider position. The 3 equations are as follows:

  5. Motion ratio - Wikipedia

    en.wikipedia.org/wiki/Motion_ratio

    Motion ratio is the more common term in the industry, but sometimes is used to mean the inverse of the above definition. Motion ratio in suspension of a vehicle describes the amount of shock travel for a given amount of wheel travel. Mathematically, it is the ratio of shock travel and wheel travel.

  6. Slip ratio - Wikipedia

    en.wikipedia.org/wiki/Slip_ratio

    Slip ratio is a means of calculating and expressing the slipping behavior of the wheel of an automobile.It is of fundamental importance in the field of vehicle dynamics, as it allows to understand the relationship between the deformation of the tire and the longitudinal forces (i.e. the forces responsible for forward acceleration and braking) acting upon it.

  7. Wheel and axle - Wikipedia

    en.wikipedia.org/wiki/Wheel_and_axle

    The wheel and axle is a simple machine, consisting of a wheel attached to a smaller axle so that these two parts rotate together, in which a force is transferred from one to the other. The wheel and axle can be viewed as a version of the Lever, with a drive force applied tangentially to the perimeter of the wheel, and a load force applied to ...

  8. File:Ohms law wheel WVOA.svg - Wikipedia

    en.wikipedia.org/wiki/File:Ohms_law_wheel_WVOA.svg

    English: Simplified Ohm's law wheel using unit symbols. This is specially useful for teaching Ohm's law to young students. This is specially useful for teaching Ohm's law to young students. Note: VA ( volt amps ) has been substituted for W ( watts ), which is approximately the same in most cases, but can be vastly different in large systems ...

  9. Rolling resistance - Wikipedia

    en.wikipedia.org/wiki/Rolling_resistance

    Figure 1 Hard wheel rolling on and deforming a soft surface, resulting in the reaction force R from the surface having a component that opposes the motion. (W is some vertical load on the axle, F is some towing force applied to the axle, r is the wheel radius, and both friction with the ground and friction at the axle are assumed to be negligible and so are not shown.