Problem P. 3904. (September 2006)
P. 3904. The volume of a rubber ball is 600 cm^{3}. When it floats on the surface of water 80% of its volume is above the water. a) Find the average density of the ball. b) If the ball is pushed down, and immersed in the water, what is the force with which it can be kept under the water?
(3 pont)
Deadline expired on 11 October 2006.
Sorry, the solution is available only in Hungarian. Google translation
Megoldás. a) A víz sűrűségének 20 százaléka 200 kg/m^{3}.
b) 4,7 N.
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