Question

disc A of radius r moving with speed 5m/s on a smooth horizontal surface hits another disc B of radius 2r lying at rest. At the moment of impact the velocity vector of centre of disc A is perpendicular distance 1.8r from centre of disc B. It is observed that discs move perpendicular to each other after impact. Mass of A is 1kg and mass of B is 4kg. both discs are smooth. What are their velocities after impact?​

Answer 1

Explanation:

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