Photos Of Nail Problems That Are Connected To Other Diseases Help I Need The Formulas For These Problems?

Help i need the formulas for these problems? - photos of nail problems that are connected to other diseases

The figure shows a hammer, as it takes
Nail a horizontal table.

http://www.flickr.com/photos/22299796 @ N07/2335701360 /

1) When a force exerted by the order of 108 N
horizontally, as shown, find the force
from the grip of hammer on the nail. (Take
the force of the hammer on the nail
parallel to the nail). CN.

2) Determine the force exerted by the surface
Contacts with the hammer head. Suppose
the force exerted on the dog
The nail is parallel to the nail. in units of N

3) At what angle is the applied force? Answer
between 180 degrees and 180 degrees to the right and left 0degrees positive. Answer in units.