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    Description of Work, energy and motion

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    Clarify:
    uniform Circular Motion
    Potential Energry
    Work Kinetic Energy
    Conservation of Engery
    Work by External Forces
    Newtons Laws 1,2,3

    I need your help on what are the main things i would need to know from those areas in-order to solve relating problems

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    https://brainmass.com/physics/work/description-work-energy-motion-9430

    Solution Preview

    Uniform Circular Motion

    (1)Velocity is continiously changing as the direction of velocity is changing. The Speed of the mass remains constant (speed = |velocity|)
    2. The centripetal force is keeping the mass in its path and is given by, F = mv^2/R
    3. If a mass m tied to the end of a string is whirled in a vertical circle, the tension in the string wiil be max at the bottom and minimum at the top

    T = centripetal force - mg (min)

    4. Tangential acceleration is zero in ...

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