Determine the normal force it exerts on the surface and the mass mB of block B

A 4-kg sphere rests on the smooth parabolic surface.
Determine the normal force it exerts on the surface and the
mass mB of block B needed to hold it in the equilibrium
position shown.

[T-She-Go]

Hi :)

Do you mind explaining how alpha is opposite beta?

Thank you.

[taco_taco]

How did you come up with 1 as the base of your first triangle when finding Beta?

[ROCKYGuerrero]

When you solved the sum of Forces in the y-axis why did you multiple the function by (-.5/.866)? where did you get that value?

[nainamir]

Can u explain where beta came from and how u solved it and for alpha

[be]

why is there no x component of the weight force