A 200-N Crate Rests on an Ramp;the Maximum Angle Just $\degree$

question 54

Multiple Choice

A 200-N crate rests on an ramp;the maximum angle just before it slips is 25 $\degree$ with the horizontal.What is the coefficient of static friction between crate and ramp surfaces?

• A)0.11
• B)0.21
• C)0.38
• D)0.47

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