In the given figure force on wire ABC will be (B = 2T) - Vidyadip

MCQ

In the given figure force on wire $ABC$ will be $(B = 2T)$

A
$4(3+2\pi ) N$
✓
$20\,N$
C
$10\,N$
D
$40\,N$

✓

Answer

Correct option: B.

$20\,N$

b
Force an $\mathrm{AB}=\mathrm{BI} \ell=12 \mathrm{\,N}$ (upward)

Force on $\mathrm{BC}=16 \mathrm{\,N}$ (left)

so force on $\mathrm{ABC}=\sqrt{(12)^{2}+(16)^{2}}=20 \mathrm{\,N}$

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