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In our solar system, asteriods, small satellites, comets with diameters less than 600 km can be very irregular in shape, where as those with larger diameters are spherical. Only if the rocks have sufficient strength to resists gravity then an object can maintain a non-spherical shape. In solar system, there is a planatary object of uniform density rho and radius R What is the largest possible size of a non-spherical self gravitating satellite made of concrete ? Assume that concrete has maximum compressive stress of4. 0 xx 10^(7)N//m^(2) and a density rho = 3000 kg//m^(3)

Answer»

250 KM
140 km
180 km
640 km

ANSWER :C


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