An object of mass 'm' is on an inclined plane with an incline angle of 'O.' The coefficient of friction between the object and the plane is 'mu.' The object is at rest upon the incline. The free-body diagram is shown with the weight vector resolved into parallel and perpendicular components. (NOTE: Force vectors are not drawn to scale.) Which mathematical statements are correct? Include all that apply. a. Fnorm = Fgrav b. Fperpendicular = Fnorm Ffrict Fnorm C. Fperpendicular = Fgrav d. Ffrict S mu . Fperpendicular e. Fnorm = Ffrict Fperp Fpar f. Fparallel = Ffrict g. Fnet = Fparallel Fgrav