Spark plugs should be tightened to a specified torque of 13.79 Nm. You have a wrench that is 0.28 m long, but because of the tightness of the space you

can't pull the wrench at a ninety degree angle. You must pull at an angle of 30.72 degrees, measured from the handle of the wrench. What force must you exert on the wrench?

Fig: 1