Question #163771 
 A metre rule is pivoted at a midpoint C with a vertical force of 10N hanging from the distance 30cm from C.At what distance must a 15N force hang to balance the rule horizontally.
1
Expert's answer
2021-02-15T17:04:05-0500

Taking moments:


10(30)=15xx=20 cm10(30)=15x\\x=20\ cm


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