A uniform meter stick weighing 30 N has a 40 N weigth on its left end and a 40 N weight on its right end. The bar is hung from a rope.

A uniform meter stick weighing 30 N has a 40 N weigth on its left end and a 40 N weight on its right end. The bar is hung from a rope. What is the tension in the rope and how far from the left end of the bar should the rope be attached so that the stick remains level? 

 110. N placed 30.0 cm from the left end of the bar

 220. N placed 50.0 cm from the left end of the bar

 330. N placed 50.0 cm from the left end of the bar

 110. N placed 50.0 cm from the left end of the bar