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1) Two spherical masses of radius 30 cm and mass 25 kg and 15 kg respectively are are initially at rest, with centers separated by 3 m, and are free to move on a surface friction. When the spheres collide, what will be the velocity of each?
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Answer #1

Concept used:- here we first use the conservation of energy principle and then we use the conservation of momentum principle and we get two equations for the two speeds and then solving them gives the required velocities, both have radii betwenn theit cerm 2.4-m = ng + m, z 25 Solving ea Oawe get iSk mass***************************************************************************************************
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