A 22.0-caliber rifle bullet of mass 1.80 grams, traveling at 340m/s, strikes a block of soft wood, which it penetrates to a depth of 0.100 meters. The block of wood is clamped in place and doesn't move. Assume a constant retarding force. What force, in newtons, does the wood exert on the bullet and how long, in seconds, is required to stop the bullet?