If we put a ball(made by metal) of dia 10mm on table of
size 200 mm*200 mm . weight of ball is 10 kg(98.1N) it
should point conact with table than what is the stress
acting on table and why?

Answer Posted / psg tech

It is a contact problem. The stress developed near contact
region is given by(if both ball and table are of same
material),

0.388*(P*E^2/R^2)^0.33

P = load
E = Youngs modulus of ball
R = radius of ball

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