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  2. Direction of movement - Wikipedia

    en.wikipedia.org/wiki/Direction_of_movement

    Then directions can be described by saying, for example, that the direction of the second step is 3 o'clock, and the direction of the third step is between 4 and 5 o'clock. [4] By compass points: Assuming that the dancer faces North at any moment, one may say, e.g., "take a step North-West". [citation needed]

  3. Slider-crank linkage - Wikipedia

    en.wikipedia.org/wiki/Slider-crank_linkage

    An in-line crank slider is oriented in a way in which the pivot point of the crank is coincident with the axis of the linear movement. The follower arm, which is the link that connects the crank arm to the slider, connects to a pin in the center of sliding object. This pin is considered to be on the linear movement axis.

  4. Slickenside - Wikipedia

    en.wikipedia.org/wiki/Slickenside

    Slickenside formation results in unique roughness on a slip surface. Fault surface roughness (or topography) is characterized by the aspect ratio of asperity height to scale of observation, and this roughness is a key parameter in the study of fault slip. [8]

  5. Linear motion - Wikipedia

    en.wikipedia.org/wiki/Linear_motion

    Since linear motion is a motion in a single dimension, the distance traveled by an object in particular direction is the same as displacement. [4] The SI unit of displacement is the metre . [ 5 ] [ 6 ] If x 1 {\displaystyle x_{1}} is the initial position of an object and x 2 {\displaystyle x_{2}} is the final position, then mathematically the ...

  6. 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.

  7. Ratchet (device) - Wikipedia

    en.wikipedia.org/wiki/Ratchet_(device)

    Red arrows indicate which way force is applied to the gear rack. The rack and pawl are both restricted to only linear movement (not shown). A ratchet (occasionally spelled rachet) is a mechanical device that allows continuous linear or rotary motion in only one direction while preventing motion in the opposite direction. Ratchets are widely ...

  8. File:Movement directions in ballroom.svg - Wikipedia

    en.wikipedia.org/wiki/File:Movement_directions...

    Date/Time Thumbnail Dimensions User Comment; current: 15:12, 30 April 2020: 602 × 566 (9 KB): Anypodetos: Capitalisation; colour dance floor for clarity: 12:02, 30 April 2020

  9. Centripetal force - Wikipedia

    en.wikipedia.org/wiki/Centripetal_force

    A centripetal force (from Latin centrum, "center" and petere, "to seek" [1]) is a force that makes a body follow a curved path.The direction of the centripetal force is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path.