One end of a post weighing 400N and with height hrests on a rough horizontal surface with μs=0.30. The upper end is held by a rope fastened to the surface and making an angle of 36.9o with the post. A horizontal force F→ is exerted on the post as shown. (Figure 1)
If the force F→ is applied at the midpoint of the post, what is the largest value it can have without causing the post to slip?
Express your answer using two significant figures.
How large can the force be without causing the post to slip if its point of application is 6/10 of the way from the ground to the top of the post?
Express your answer using two significant figures.