Let F , FN and f denote the magnitudes of the contact force , normal force and the force of friction exerted by one surface on the other kept in contact. If none of these is zero , then ,
Well , I don't know whether object is moving with respect to other or not...
In case of static friction ,
fs ≤ μsFN
In case of kinetic friction ,
fk = μkFN < μsFN
The Attempt at a Solution
OK , So obviously (A) is correct. (B) is also correct. (D) obviously is correct. (C) is also correct as it would mean that tanθ = μ <1 which is also true.
So I go for A , B , C , D. But the textbook gives the answer A,B,D. Why is it so ? Where am I going wrong ?
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