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14 June, 13:48

Junior slides across home plate during a baseball game. If he has a mass of 115 kg, and the coefficient of kinetic friction between him and the ground is 0.35, what is the force of friction acting on him?

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  1. 14 June, 14:09
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    Weight Force of Junior = m g = 115kg x 9.81 m/s^2 = 1128.15N then compute for the friction force

    Friction Force = WF x (coefficient of kinetic friction) = 1128.15N x 0.35 = 394.8525N or 395N

    But you can compute in a straightway:

    Solution:

    = 115 x 9.81 x 0.35

    = 394.85

    = 395 N

    It will still give the same results.
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