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AP® Physics 1 & 2

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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 $m$.

Created by Chris Lyke for Albert.io. Copyright 2016.

What is the tension force in the wire?

A

$m/2$

B

$\frac { mg }{ 2 } $

C

$mg$

D

$2mg$