1. 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. Page < 20 1 > of 2 60 2. Determine the moment of the force about point A if F=600 N 3. The lug nut on the wheel of the automobile is to be removed using the wrench and applying the vertical force of at A. Determine if this force is adequate, provided 14 N-m of torque about the x axis is initially required to turn the nut. If the 30-N force can be applied at A in any other direction, will it be possible to turn the nut? B 0.25 m MacBook Pro F= 30 N 14 in. B 4 m F 6 m 45 0.3 m 0.5 m 0.1 m 4 m 6 m 3 in. in. F