Homework Help: Physics

Posted by Lia on Tuesday, January 1, 2013 at 3:18pm.

a store owner wishes to hang a sign weighinh 750N so that cable A attached to the store makes a 30 degree angle from the vertical wall. cable B is attached horizontally to an ajoining building. calculate the necessary tension on cable B
|.\
|30\
|...\ A
|....\
|.....\____B_____

Physics - Lia, Tuesday, January 1, 2013 at 3:27pm
so theres a triangle now with an inside angle of 120
Physics - Lia, Tuesday, January 1, 2013 at 5:03pm
saaw somewhere the answer is 433 but thats not what im getting
Physics - Knights, Tuesday, January 1, 2013 at 5:07pm
Physics - Damon, Saturday, November 17, 2012 at 8:28pm
T sin 30 = force up = 730
T = 1460 N in cable A
T cos 30 = horizontal component = 1460 cos 30 = 1264 N

I did not post this...Damon did

This problem
is the same thing but with a sign weighing 730 N

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