A box is dragged across a floor by pulling on a rope attached to the crate and inclined 25 o above the horizontal. If the coefficient of sta

Question

A box is dragged across a floor by pulling on a rope attached to the crate and inclined 25 o above the horizontal. If the coefficient of static friction is 0.64, it requires a force of 350 N to just start it moving. What is the mass of the box

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Sapo 5 months 2021-08-15T04:09:24+00:00 1 Answers 1 views 0

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    2021-08-15T04:11:06+00:00

    Answer:

    m=35.58 kg

    Explanation:

    Using the first Newton’s equation

    \Sum F_{T}=F-mgsin(25)-\mu mgcos(25)=0

    We just need to solve it for m:

    m=\frac{F}{g(sin(25)+\mu cos(25))}

    m=\frac{350}{9.81(sin(25)+0.64cos(25))}

    m=35.58 kg

    I hope it helps you!

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