Vectors

[uneven pier]

Could anyone help me with this problem.

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[stuck cobalt]

oh thats physics

[uneven pier]

yeah lol its part of my multivariable summer assingment

[stuck cobalt]

i named the tensions as t1,t2,t3

in three strings

i will resolve those vectors in z axis direction by considering respective cosines

then the resultant in z direction equals the weight of that box

its difficult to show

lemme try to show

t1 cos alpha+t2 cos beta+t3cos gamma equals weight ie mg

we have three tensions need three equations

find the angles using geometry

thats equation 1

resolve along xy plane that is sine components they are in equilibrium

that might give eq 2

vector sum=0

but how third eq

[uneven pier]

yeah im kinda confused on this problem as well

[stuck cobalt]

can you somehow balance torque

to get 3rd eq

[uneven pier]

my friend looked it up just now and he got this from quizlet but idk

[stuck cobalt]

oh my oh my

physics is crazy

[stuck cobalt]

noice one resolving in ay,axand az directions

[uneven pier]

i still dont quite understand

how they found the angles tho

[stuck cobalt]

use geometry