Physics - NLM Question with Solution | TestHub

Three forces act on the bob: tension T, weight W = 1 N (down) and F = 2 N (horizontal). In equilibrium T balances the resultant of F and W.

$T=\sqrt{F^2+W^2}=\sqrt{2^2+1^2}=\sqrt{5}\mathrm{N}$. Answer: (C).