July 6th, 2019, 12:25 AM  #1 
Member Joined: Feb 2018 From: Iran Posts: 52 Thanks: 3  Resultant force find the resultant force

July 6th, 2019, 02:52 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,823 Thanks: 2160 
A smaller, clearer diagram would be helpful. Can you obtain the "horizontal" and "vertical" components of each force? 
July 7th, 2019, 07:50 AM  #3 
Math Team Joined: Jul 2011 From: Texas Posts: 2,980 Thanks: 1573 
fairly easy to see $\alpha = 30^\circ$ $\displaystyle \sum F_x = 10\cos(60)+2010\sqrt{3}\cos(30) = 10$ $\displaystyle \sum F_y = 10\sin(60)+010\sqrt{3}\sin(30) = 0$ ... what now? 

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