A flight attendant pulls her 70.0 N flight bag a distance of 269 m along a level airport floor at a constant speed. The force she exerts is 32.0 N at an angle of 52.0° above the horizontal. (a) Find the work she does on the flight bag. _5299_J (b) Find the work done by the force of friction on the flight bag. _-5299_ J (c) Find the coefficient of kinetic friction between the flight bag and the floor. ____ i found part A, by 32.0 x 269 x cos(52.0) = 5299J but i dont understand how to get part c i keep doing 32Cos(52)=70-32sin(52)k and i get .1357, dont get what im doing wrong HELP!??