Two identical smooth spheres collide elastically on a frictionless horizontal table
PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power
Problem
Two identical smooth spheres collide elastically on a frictionless horizontal table. One sphere is initially at rest, while the other approaches it. After collision the two spheres move off with equal speeds. The angle between their directions of motion is
(a) 60∘
(b) 90∘
(c) 45∘
(d) 120∘