3. A 10.0 kg box of books is pulled down a 15.0 slope by a pulling force of 50.0 N that is 55.0 above the incline of the slope starting from rest. The coefficient of kinetic friction is uk = 0.350. The box is pulled for 5.00 m along the slope. a. Draw a FBD, include a legend of the forces and identify them as conservative or non- conservative.b. Find the magnitude of the normal force and calculate the work it does on the box. c. Find the magnitude of the friction force and calculate the work done by friction. d. Calculate the work done by the pulling force. e. Calculate the work done by gravity f. Use the work-kinetic energy theorem to find the final speed of the box