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# Translational Equilibrium: Calculating Tension

APPH12-HLK9ZG

A painting hangs from a wire supported by a single nail in the wall as in the diagram below. Both ends of the wire make a $30^\circ$ angle with the horizontal. The painting has mass $m$.

Which of the following correctly calculates the tension force in the wire?

A

$\dfrac{m}{2}$

B

$\dfrac { mg }{ 2 }$

C

$mg$

D

$2mg$