Which of the following groups of forces could be in equibrium
$3\, N, 4\, N, 5 \,N$
$4\,N, 5 \,N, 10 \,N$
$30\,N, 40 \,N, 80 \,N$
$1\,N, 3\, N, 5\, N$
Which of the following groups of forces could be in equibrium
For equilibrium of forces, the resultant of two (smaller) forces should be equal and opposite to third one.
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