Help, I keep getting this problem wrong hammer and nail?

The figure shows a claw hammer as it pulls a


nail out of a horizontal board.





http://www.flickr.com/photos/22299796@N0鈥?/a>





1)If a force of magnitude 108 N is exerted


horizontally as shown, Find the force exerted


by the hammer claws on the nail. (Assume


that the force the hammer exerts on the nail


is parallel to the nail). In kN.





2)Find the force exerted by the surface on the


point of contact with the hammer head. Assume


that the force the hammer exerts on the


nail is parallel to the nail. in units of NHelp, I keep getting this problem wrong hammer and nail?
(28.7/5.82)*F = 532.6 N = Fv





1) Fn = Fv/cos29.2掳 = 610.1 N = .61 kN





2) Fs = Fn = 610.1 N