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I’m a bit confused as to where the 3/5 is coming from
here CE is 3 in this case
It represent the cos / sin of the angle and whenever your side / bottom of a triangle is 3/4/5, or a multiple, you can just use the ratio rather than solve the cos or sin of the angle
Why did we not need to calculate the reaction forces?
Shouldn't F_CD = - F_DC = -800 ?
I’m a bit confused as to where the 3/5 is coming from
here CE is 3 in this case
It represent the cos / sin of the angle and whenever your side / bottom of a triangle is 3/4/5, or a multiple, you can just use the ratio rather than solve the cos or sin of the angle
Why did we not need to calculate the reaction forces?
Shouldn't F_CD = - F_DC = -800 ?