Recent content by ado sar

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    Undergrad What is the equation for friction's role in walking?

    When we loose the touch with ground no friction is acting..so how we accelarate ? also friction prevent our foot from sliding but also accelarates our body ? how is it possible to acting in 2 different points ( foot and center of mass ) ?
    • ado sar
    • Thread
    • classic physics friction movement
    • Replies: 11
    • Forum: Mechanics
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    High School What we mean in physics definition (quantity or property)?

    Many books sometimes for example define energy as quantity and sometimes as property. Also the definition of energy is the ability to do work or the meter of the ability to do work ? we define for example force as a quantity or as some quality and then we quantify this ?
    • ado sar
    • Thread
    • Classic physics Definition Definitions Mean Newtonian mechanics Physics Property
    • Replies: 1
    • Forum: Other Physics Topics
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    High School What the equal sign means in physics

    thx for the answer because in one book it said definition of kinetic energy and then K=1/2mu^2
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    High School What the equal sign means in physics

    what about kinetic energy and the formula 1/2mu^2 ? we define it as this product ? i am getting a little bit frustrated because the equal sign..from a math point of view every equality should be a definition right ?
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    High School What the equal sign means in physics

    For example F=ma means that the definition of force is m*a or the quantity of left side equals to the quantity of right side or both ? or kinetic energy..we know K=1/2mu^2 but is this the definition of kinetic energy or just the formula to calculate it ?
    • ado sar
    • Thread
    • Classical physics Means Newtonian mechanics Physics Sign
    • Replies: 34
    • Forum: Classical Physics