A mechanic changing the spark plugs in a car notes that the instruction manual calls for a torque with a magnitude of
39 N · m.
If the mechanic grasps the wrench as shown in the figure below, determine the magnitude (in N) of the force she must exert on the wrench.
A wrench has one end wrapped around a pivot point and is being held by a hand at a distance of 0.3 m from the pivot point. The wrench points down and to the right from the pivot point. The wrench has an angle of 60 degrees above the horizontal on the left side of the wrench. At the hand a horizontal arrow points to the right and is labeled vector F.