The Attempt at a Solution
Using the fact that the sphere is in equilibrium in the 'y' direction , the force exerted by the floor N = 2mg .
Now , if I consider the lower hemisphere then , vertical force exerted by top hemisphere + weight of lower hemisphere = Normal reaction from the floor .
This means , vertical force exerted by top hemisphere on lower = mg
Should this be the total force exerted on the lower hemisphere ?
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