1. The problem statement, all variables and given/known data A 40.0-kg object is being pulled along a horizontal surface by means of a rope that exerts a force of 200 N at an angle of 30° below the horizontal. The coefficient of static friction between the object and the surface is 0.40. The force of friction on the object is: A) 197 N B) 173 N C) 392 N D) 157 N 2. Relevant equations µ_s = F_s/ F_n 3. The attempt at a solution So I got 197 N, which was A. However, the answer was B on the answer sheet. What have I done wrong?