two objects are suspended on a platform one weighs 10 kg and the other weighs 20 kg, the coefficent of static friction is 0.4
how to find angle each of the objects start to slide
The Attempt at a Solution
OK so Us=Fs/Fn
Fg=9.8(10) for the 10 kg object
using the vertical and horizontal components of the fg vector i get
Fn= ma cos(theta)
Fs= ma sin(theta)
cos(theta) mass and acceleration cancel out
this is where i get stuck because i have theta over theta they should cancel out and i will be left with a broken equation :( any help would be appreciated.
Also if mass cancels out how am i supposed to get different angles for each of the boxes which weigh different amounts?