Determine the moment of this force and the required force F

The handle of the hammer is subjected to the force of F = 20 lb. Determine the moment of this force about the point A. In order to pull out the nail at B, the force F exerted on the handle of the hammer must produce a clockwise moment of 500 lb # in. about point A. Determine the required magnitude of force F. Get the book: http://amzn.to/2h3hcFq