**·**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 sphere⇒ 3Nsin 60° = Mg⇒ 3N × √3/2 = Mg⇒ N = 2Mg/3√3or N =

2√3 Mg/9