could you answer this homework for me my instructors wants us to use triangle fo

Question

could you answer this homework for me my instructors wants us to use triangle force.

frictionless. Block Bgu friction for all contact surfaces is 0.20. W1 Pulley 35° PROBLEM 6.47 ocks shown are separated by a solid strut attached to friction for all surfaces is 0.325. Determine the value of the PRO the blocks with frictionless pins. The coefficient of static horizontal force P that will cause motion to impend to the 6.52 right. Neglect the weight of the strut. 36 lb Strut 50 lb 20° 40° PROBLEM 6.48 .49 The end of a timber beam is to be lifted using a steel wedge at B, as shown. Determine the force P that must be applied to the wedge to cause it to move to the left. The coefficient of static friction for the contact surfaces is 0.30. 70 lb/ft

Explanation / Answer

50 lb = 22.679 kg

36 lb = 16.329 kg

Maximum frictional force on 36 lb;

f(36 lb) = 0.325*16.329*9.8*cos(40)

= 39.84 N

Maximum downward force :

D = 16.329*9.8*sin(40)

= 102.862 N

Downward Force =  102.862- 39.84 = 63.022 N

F(strauss) = 63.022*cos(20) = 59.22 N

Normal force on 50 lb:

N = 22.679*9.8+59.22*sin(20) = 242.51 N

Maximum Force :

P = 59.22*cos(20)+ 242.51*0.325

= 134.464 N

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