Friction and inclines problem. i need help

[moderator note: moved from technical forums, no template]

this is fun but i am stuck. help! :) the first image states the problem and the second image is my futile attempt at a solution

Attachments

• aggh problem.png
12 KB · Views: 399
• agghhh.png
15.2 KB · Views: 371
Last edited by a moderator:

PeroK
Homework Helper
Gold Member
2021 Award
You need a better free body diagram, showing the forces at the top and bottom of the ladder.

Terrell
wrobel
Theorem. If a rigid body is in rest then the sum of torques about any point is equal zero and the sum of forces is also equal zero.
It is convenient to calculate torques about one of two contact points of the ladder and the wall/floor.

Theorem. If a rigid body is in rest then the sum of torques about any point is equal zero and the sum of forces is also equal zero.
It is convenient to calculate torques about one of two contact points of the ladder and the wall/floor.
can i solve this without torques? i haven't got into torques just yet

haruspex