In Fig. 12-66, a 817 g construction bucket is suspended by a cable A that is attached at O to two other cables B and C, making angles θ1 = 51.0° and θ2 = 66.0° with the horizontal. Find the tensions in (a) cable A, (b) cable B, and (c) cable C. (Hint: To avoid solving two equations in two unknowns, position the axes as shown in the figure.)
heres the photo ( I put it on my fb)
https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash3/534295_4085194888298_1780248888_n.jpg
In the answer it says cable A makes and angle of 66 with the negative y axis, and cable B makes an angle of 27 with the positive y axis? how did they get the angle 27? Can someone please explain it to me ? Thanks
heres the photo ( I put it on my fb)
https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash3/534295_4085194888298_1780248888_n.jpg
In the answer it says cable A makes and angle of 66 with the negative y axis, and cable B makes an angle of 27 with the positive y axis? how did they get the angle 27? Can someone please explain it to me ? Thanks
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The angle bettween the cable B and C = 180 - ( 66 + 51 ) = 63
and since y axis is perpendicular to the x axis
so angle bettween Cable B and positive y axis = 90 - 63 = 27
Hope I helped and good luck
and since y axis is perpendicular to the x axis
so angle bettween Cable B and positive y axis = 90 - 63 = 27
Hope I helped and good luck