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15 July, 04:58

I need a equation for a problem in using a pulling force a mass a coefficient of static friction a coefficient of kinetic friction and solving for the frictional force

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  1. 15 July, 07:08
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    The minimum pulling force required to start it moving is

    equal to the static frictional force.

    F = (mass) x (gravity) x (coefficient of static friction).

    Once it's moving, the force required to keep it moving at a steady speed,

    without speeding up or slowing down, is the force of kinetic friction.

    F = (mass) x (gravity) x (coefficient of kinetic friction).

    In both equations, [ (mass) x (gravity) ] is just the object's 'weight'.
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