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In the given figure the tension in the s...

In the given figure the tension in the string OB is 30N. Find the weight 'W and the tension in the string OA.

Text Solution

Verified by Experts

Let `T_(1)` and `T_(2)` be the tensions in the strings OA and OB respectively.

According to lami.s theorem
`T_(1)/(sin 90^(@)) =T_(2)/(sin 150^(@)) =W/(sin 120^(@)) (T_(2)=30 N)`
on solving `w=30sqrt(3) N` and `T_(1) = 60 N`
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