**·**2020-01-28 07:55:59

Since they are all symmetric, the normal reactions will be the samelet the normal reactions through the point of contact between a hemisphere and the sphere be NThen the vertical component of all the three normal reactions will balance out the weight of the sphereâ‡’ 3Nsin 60Â° = Mgâ‡’ 3N Ã— âˆš3/2 = Mgâ‡’ N = 2Mg/3âˆš3or N =

2âˆš3 Mg/9