JEE Advanced 2020 Concept Recapitulation Test 3 Paper 2

Two spheres of masses 1kg and 3kg are on a horizontal smooth surface. Sphere of mass 3kg is given velocity V0=‌

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3

m∕s towards other sphere such that it makes an angle of 30∘ with line of impact. Then, find maximum possible loss of kinetic energy of two sphere during collision.