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ELEN [110]
3 years ago
10

The three ropes in the figure are tied to a small, very light ring. Two of these ropes are anchored to walls at right angles wit

h tensions T1 = 20 N and T2 = 60 N. What are the magnitude and direction of the tension vector T3 in the third rope?
Correct: Your answer is correct. N. ° (below the positive x-axis)
Physics
1 answer:
netineya [11]3 years ago
8 0
<span>Let t be the angle made by T3 with the x-axis.

 T3 * cos(t) = 20 N ---- (1)
 T3 * sin(t) = 60 N ----- (2)

 Square both equations and add:

T3^2 = 20^2 + 60^2 = 400 + 3600 = 4000
T3 = sqrt(4000) = 63.25 N
 
divide (2) by (1):
tan(t) = 60/20 = 3
t = arctan(3) = 71.57 degrees.

</span><span>Since the angle clockwise from the x-axis some books may call it a negative angle and say the angle is -71.57 degrees or round it to -71.6 or even -72 degrees.</span>
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Explanation:

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