Devon is applying 100N of force to pull a 15 kg object, but the object isn’t moving. What does this indicate about the coefficient of

Question

Devon is applying 100N of force to pull a 15 kg object, but the object isn’t moving. What does this indicate about the coefficient of
friction for the surface?

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Ladonna 3 years 2021-08-15T05:18:51+00:00 1 Answers 23 views 0

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  1. Gerda
    0
    2021-08-15T05:20:09+00:00
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    Answer:

    Coefficient of friction is at least 0.68

    Explanation:

    The maximum possible friction, F_r is given by F_r=\mu R where \mu is coefficient of friction and R=mg where m is mass and g is acceleration due to gravity. For the object to move, the applied force must be greater than the frictional force hence for this case \mu\times 15\times 9.81=100\\\mu=\frac {100}{15\times 9.81}=0.6795786612300373768263676520557254502208\approx 0.68

    Therefore, it means the coefficient of friction is at least 0.68

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