A 150-N ladder leans against a smooth wall, inclined at an angle of 60 degrees above the floor. The centre of gravity of the ladder is at point on the ladder which is one-third the length of the ladder from the bottom. How large a horizontal force must the floor provide if the ladder is not to slip?

Answer 1

I wish i could post a link of my FBD here, but the website won't allow any links to be posted.

It's really hard to explain on here if you can't see a free body diagram.

Could you show me how you started it and maybe I can try to follow what you're doing?

Answer 2

If you want to check your answer, I got 283.19N