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

In the given figure the tension in the stiring OB is 30N. Find the wei

1.	In the given figure the tension in the stiring OB is 30N. Find the weight .W. and the tension in the string OA.
Answer» Solution :Let `T_(1) and T_(2)` be the TENSIONS in the strings OA and OB respectively According to lani.s THEOREM `(T_(1))/(sin90^(0))=(T_(2))/(sin150^(0))=(W)/(sin120^(0))(T_(2)30N)` on SOLVING w = `30sqrt(3)N` and `T_(1)`=60N