Two homogeneous spherical balls

Two homogeneous spherical balls rest between two vertical walls as shown in the figure. The radius of the smaller ball is 16cm and the weight is 1.15 kN. The radius of the larger ball is 24 cm and its weight is 3,45kN. The distance between the walls is 72 cm. Assuming the contact surfaces to be smooth, determine the reactions at A, B, and C 72 cm B
 
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