Problem 12.4 Less Simple Wedge Given the loading condition applied to be beam AD shown below, you are required to: 3) Determine the force P required to remove the wedge if the coefficients of statics friction are 0.27 and 0.34 for the upper and lower surfaces of the wedge respectively. b) Determine if the wedge is selflocking when the force P = O N. 4 kN /m 10 A D P 3 m 4 m