Two bodies A and B of definite shape (dimensions of bodies are not ignored). A is moving with speed of 10 ms⁻¹ and B is at rest; they collide elastically. The

JEE Main Physics question

Two bodies and of definite shape (dimensions of bodies are not ignored). is moving with speed of 10 ms⁻¹ and is at rest; they collide elastically. The

(A)Body comes to rest and moves with speed of 10 ms⁻¹
(B)They may move perpendicular to each other
(C) and may come to restCorrect
(D)They must move perpendicular to each other

Answer: (C)

Solution

For extended (non-point) bodies with definite shape, an elastic collision need not be head-on/central; depending on the geometry of contact (impact parameter), many outcomes are possible, including both bodies ending

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Question ID VK-158644