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OpenStudy (anonymous):
***PLEASE! Help Needed!!?!*** ***Medal AND Fan Rewarded*** - A block of wood weighing 18 pounds rests on an inclined plane that makes an angle of 60 with the horizontal. How much of the friction force is needed to prevent the block from sliding on the plane? - Round answer to nearest whole number.
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OpenStudy (anonymous):
F = w*sin(angle) use this formula where w= weight
OpenStudy (anonymous):
F=18*60(degrees)
OpenStudy (anonymous):
1080?
OpenStudy (anonymous):
18 * sin(60) =15.588
OpenStudy (anonymous):
how did you get that???
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