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OpenStudy (moongazer):
A 250-N crate is pulled along a horizontal sidewalk at a constant speed by a rope which makes an angle of 40 degrees with the sidewalk. If a force is 150-N is applied on the rope what is the coefficient of sliding friction?
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OpenStudy (moongazer):
\[F _{f}= \mu F _{n}\] this is the formula i know and i don't know how to use it in this case
OpenStudy (anonymous):
Constant Speed Means No Acceleration which further implies No Net Force.
OpenStudy (anonymous):
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