JEE Mains 02-Sep-2020 Shift 1 Solved Paper

Section: Physics

Question : 2 of 75

Marks: +1, -0

A particle of mass m with an initial velocity u

collides perfectly elastically with a mass 3m at rest. It moves with a velocity v

after collision, then, v is given by :

[2 Sep 2020 Shift 1]

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