I need help solving this static friction question

6 Physics 20: Mrs. Tyler Assignment 6 9. The coefficient of static friction between a toboggan and dry snow is 0.50. If the toboggan's mass is 9.75 kg, what is the minimum applied force required to move the toboggan? (2) 10. A 195 Mg (megagram) train skids at a constant velocity south on a train track. The coefficient of kinetic friction between the steel wheels and steel track is 0.35. Determine the force of friction acting on the train. (2) with a sp the horizontal 11. A 1250 kg car brakes on an icy road. At the point the car's breaks apply a force of up to 562 N before the car will begin to skid. Use this information to calculate the coefficient of friction based on this information. Have you calculated the coefficient of static or kinetic friction? (3) You're done! Once you've completed and checked all of your solutions, submit all of Assignment 6 to the appropriate dropbox in Moodle