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4 November, 08:07

An object slides on a level floor. It slows and comes to a stop with a constant acceleration of magnitude 2.4 m/s2. What is the coefficient of kinetic friction between the object and the floor?

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  1. 4 November, 11:23
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    0.245

    Explanation:

    Force of the object = mass * acceleration of the body = 2.4m where m = mass,

    And the Frictional force = force acting on the object due to its acceleration.

    The force of normal due to the weight of the body = m*9.81.

    Coefficient of kinetic friction = 2.4m / 9.81m = 0.245.
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