Three forces, labeled A$,$ B$,$ C$,$ are applied to a door that may rotate about a hinge at P$.$ The forces all have the same magnitude and each force makes a $30$ angle with the door as shown. Which relationships are true for the magnitude of torque caused by these forces as well as the net torque about point P$?$

None of the other sets of relationships are correct.

tnet

$A<mi></mi>$ net

tnet

$A$ net

${}_A={}_B={}_C<msub><mrow><mi></mi></mrow><mrow><mtext>n</mtext><mtext>e</mtext><mtext>t</mtext><mtext></mtext></mrow></msub>$

$<mi></mi><mi>B</mi><msub><mrow><mi></mi></mrow><mrow><mi>A</mi></mrow></msub>$

thet $<mi></mi><mi>B</mi>$