Physics, 07.03.2020 00:09, jakobrobinette
To find the magnitude of the normal force, you must express F_n in terms of F_w since F_f is an unknown. Using the equations you found in the two previous parts, find an expression for F_n involving F_w and theta but not F_f.
{\cos}{\theta}F_{f}-{\sin}{\theta}F _{n} =0
F_{f}{\sin}{\theta}+F_{n}{\cos}{\th eta}-F_{w} =0
Answers: 1
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