The figure shows the part of a horizontally stretched net. String AB is pulled with a force of 10N. The tensions in the sections BC and BF when the net is in equilibrium are
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a
10 N, 11 N
b
10 N, 6 N
c
10 N, 10 N
d
Cannot be calculated due to insufficient data
answer is C.
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Detailed Solution
According to Lami's theorem TABsin120o=TBCsin120o=TBFsin120o⇒TAB=TBC=TBF=10N