The crowbar is subjected to a vertical force of P = 25 lb at the grip, whereas

Question:

The crowbar is subjected to a vertical force of P = 25 lb at the grip, whereas it takes a force of F = 155 lb at the claw to pull the nail out. Find the moment of each force about point A and determine if P is sufficient to pull out the nail. The crowbar contacts the board at point A.

F 60° 20° 3 in. P. A 14 in. in.