Recent content by inund8

Alright I got it! Thanks all! Once I changed the sin eqn to be sinΘ = WA(25/13)TBD it all worked fine. The 1/13 lb difference won't show didn't show in the angle, but it compounded and showed in the final answer!

That happens! I'm redoing it, since I'm pretty sure my sin θ eqn is off

I've been carrying 1 extra sf, generally. Should I be reworking my answer?

Mark44 - My value was Θ=78.23°. Just a typo right? So your eqns evaluate to 51.07lb and 78.69°. While I think that .5° discrepancy could be chalked up to rounding, I feel like 2.5+ lb difference cannot be. I guess I made a mistake assigning WA = TBC⋅12/13. WA should be TBDsinΘ = WA(25/13)?

Are there any problems with my assumptions? Mostly TBCy = WA, and the cosθ and sinθ eqns.

Homework Statement Homework Equations [/B] ΣFy = 0 ΣFx = 0 TanΘ = sinΘ/cosΘ...

I'm in a mechanical engineering technologist program in BC, Canada.