# Physics help

I'm trying to calculate the tension in a rope. The two ropes are holding up a picture frame that is 100N, each rope is at a 45 degree angle. I'm trying to find the value of the tension of the 1st rope.

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1. 50 Newtons up each
50 = T cos 45

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posted by Damon
2. T1 = T2. T2[45) = T1

T1[(180-45) + T1 = -100.
-0.707T1+0.707T1i + 0.707T1+0.707T1i=100
1.414T1i = 100i.
T1 = 70.72 N. = T2.

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posted by Henry

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