Q.
If ‘O’ is at equilibrium then the values of the tension T1 and T2 are, (20 N is acting vertically downwards at O).
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a
20N, 30 N
b
20 3N, 20N
c
203N, 203N
d
10N, 30N
answer is B.
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Detailed Solution
T11sin30°=T2cos30°;T1=3T2…(1)T1cos30°=20+T2…(2); solving (1) and (2)
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