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  2. Playground slide - Wikipedia

    en.wikipedia.org/wiki/Playground_slide

    A roller slide is a slide made of horizontal cylinders which spin underneath the person sliding as they travel down. Amusement-park slides are just larger versions of the playground slide, much higher and with multiple parallel slideways. Participants may be provided with a sack to sit on to reduce friction for higher speeds and to protect ...

  3. Sliding (motion) - Wikipedia

    en.wikipedia.org/wiki/Sliding_(motion)

    Sliding friction (also called kinetic friction) is a contact force that resists the sliding motion of two objects or an object and a surface. Sliding friction is almost always less than that of static friction; this is why it is easier to move an object once it starts moving rather than to get the object to begin moving from a rest position.

  4. Friction - Wikipedia

    en.wikipedia.org/wiki/Friction

    Static friction is friction between two or more solid objects that are not moving relative to each other. For example, static friction can prevent an object from sliding down a sloped surface. The coefficient of static friction, typically denoted as μ s, is usually higher than the coefficient of kinetic friction. Static friction is considered ...

  5. Frictional contact mechanics - Wikipedia

    en.wikipedia.org/wiki/Frictional_contact_mechanics

    Friction – Force resisting sliding motion; Friction drive – Mechanical power transmission by friction between components; Lubrication – The presence of a material to reduce friction between two surfaces. Metallurgy – Field of science that studies the physical and chemical behavior of metals

  6. Rolling contact fatigue - Wikipedia

    en.wikipedia.org/wiki/Rolling_contact_fatigue

    rolling friction. In the case of bodies capable of rolling, there is a particular type of friction, in which the sliding phenomenon, typical of dynamic friction, does not occur, but there is also a force that opposes the motion, which also excludes the case of static friction. This type of friction is called rolling friction.

  7. Slide (baseball) - Wikipedia

    en.wikipedia.org/wiki/Slide_(baseball)

    Sliding helps a runner stop his forward momentum through the friction created between the body and the ground, thus reducing the likelihood that he will run past the base after touching it. This is important because in most cases a runner is in jeopardy of being tagged out if he loses contact with the base (the most common exception is that a ...

  8. Coulomb damping - Wikipedia

    en.wikipedia.org/wiki/Coulomb_damping

    Coulomb damping dissipates energy constantly because of sliding friction. The magnitude of sliding friction is a constant value; independent of surface area, displacement or position, and velocity. The system undergoing Coulomb damping is periodic or oscillating and restrained by the sliding friction.

  9. Transient friction loading - Wikipedia

    en.wikipedia.org/wiki/Transient_friction_loading

    A classic example of transient friction loading is the wooden block sliding over an unlevel, non-planar surface. [2] Due to the transient response of the contact force, the resultant frictional force is noisy. The induced stress is concisely described as transient friction loading.