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JEE Mains 25-Jan-2023 Shift 2 Solved Paper

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Question : 26

Total: 90

A body of mass 1‌kg collides head on elastically with a stationary body of mass 3‌kg. After collision, the smaller body reverses its direction of motion and moves with a speed of 2m∕ s. The initial speed of the smaller body before collision is _______ ms−1.

[25-Jan-2023 Shift 2]

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