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  2. Newton's laws of motion - Wikipedia

    en.wikipedia.org/wiki/Newton's_laws_of_motion

    For example, a free body diagram of a block sitting upon an inclined plane can illustrate the combination of gravitational force, "normal" force, friction, and string tension. [note 4] Newton's second law is sometimes presented as a definition of force, i.e., a force is that which exists when an inertial observer sees a body accelerating.

  3. Free body diagram - Wikipedia

    en.wikipedia.org/wiki/Free_body_diagram

    In physics and engineering, a free body diagram (FBD; also called a force diagram) [1] is a graphical illustration used to visualize the applied forces, moments, and resulting reactions on a free body in a given condition. It depicts a body or connected bodies with all the applied forces and moments, and reactions, which act on the body(ies).

  4. Tension (physics) - Wikipedia

    en.wikipedia.org/wiki/Tension_(physics)

    Tension (as a transmitted force, as an action-reaction pair of forces, or as a restoring force) is measured in newtons in the International System of Units (or pounds-force in Imperial units). The ends of a string or other object transmitting tension will exert forces on the objects to which the string or rod is connected, in the direction of ...

  5. Pulley - Wikipedia

    en.wikipedia.org/wiki/Pulley

    In this case, a force balance on a free body that includes the load, W, and n supporting sections of a rope with tension T, yields: n T − W = 0. {\displaystyle nT-W=0.} The ratio of the load to the input tension force is the mechanical advantage MA of the pulley system, [ 13 ]

  6. Newton's law of universal gravitation - Wikipedia

    en.wikipedia.org/wiki/Newton's_law_of_universal...

    where F is the gravitational force acting between two objects, m 1 and m 2 are the masses of the objects, r is the distance between the centers of their masses, and G is the gravitational constant. The first test of Newton's law of gravitation between masses in the laboratory was the Cavendish experiment conducted by the British scientist Henry ...

  7. 4 brain games to keep your mind sharp and improve memory ...

    www.aol.com/lifestyle/4-brain-games-keep-mind...

    Number games like Sudoku require analytical skills “and allow for pattern recognition and problem-solving abilities, which are needed for strengthening short-term memory,” says Quimby.

  8. 50 Breakfast Ideas That Are Perfect For Cozy Fall Mornings - AOL

    www.aol.com/38-breakfast-ideas-perfect-cozy...

    Sheet-Pan Sweet Potato Hash. This easy bacon and sweet potato hash can upgrade any breakfast and comes together in one. single. pan. Yes, even the bacon!Make this for any occasion; casual ...

  9. Inertia - Wikipedia

    en.wikipedia.org/wiki/Inertia

    Inertia is the natural tendency of objects in motion to stay in motion and objects at rest to stay at rest, unless a force causes the velocity to change. It is one of the fundamental principles in classical physics, and described by Isaac Newton in his first law of motion (also known as The Principle of Inertia). [1]

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