An object of mass 3 kg lies on a rough plane inclined at 45 degree to the horizontal. The coefficient of friction is 0.2 and a force of 10 N acts at 30 degree to the object. Calculate the friction. According to the booklet the answer is 3.24 N(adsbygoogle = window.adsbygoogle || []).push({});

My work

F = u R

Normal reaction = 10 sin 30 + 30 cos 45 = 26.2

U = 0.2 x 26.2 = 5.24 N

I am confused HELPPPPPP.. where is the fault, is there something that i have not considered

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# Homework Help: Object on an incline with friction

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