How do you calculate the angles from the circle? I know that 112 was obtained by...
How do you calculate the angles from the circle? I know that 112 was obtained by subtracting 68 from 180. But how do you get the 252?
Homework Answers
First we assume length L (which I shown by red color) is purely horizontal and not tilted by angle 18 deg.
So the angle of T= 4000 N is (180+90)deg = 270 deg
However the is not the actual case and length L is tilted up by an angle 18 deg. Hence we have to subtract 18deg from 270 deg giving (270 – 18) = 252 deg
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Next, i need to calculate part (c).
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thanks!
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