1.

If `O` is at equilibrium then the values of the tension `T_(1)` and `T_(2)` are, (`20 N` is acting vertically downwards at `O`). A. `20N, 30N`B. `20sqrt3N,20N`C. `20sqrt3N,20sqrt3N`D. `10N,30N`

Answer» Correct Answer - B
`T_(1)sin 30^(@)=T_(2)cos 30^(@),T_(1)=sqrt3T_(2)....(1)`
`T_(1)cos 30^(@)=20+T_(2)` ...(2) , soving (1) and (2)


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