A body A, of mass m = 0.1 kg has an initial velocity of 3i^{\^} m s^{-1} . It collides elastically with another body, B of the same mass which has an initial velocity of 5j^{\^} m s^{-1} . After collision, A moves with a velocity v^{\to} = 4(i^{\^} + j^{\^}) . The energy of B after collision is written as x/10J . The value of x is [8 Jan 2020 Shift 1]

JEE Main 8 Jan 2020 Shift 1 Solved Paper

Section: Physics

Question : 23 of 75

Marks: +1, -0

A body A, of mass m = 0.1 kg has an initial velocity of 3

ms−1 . It collides elastically with another body, B of the same mass which has an initial velocity of 5

ms−1 . After collision, A moves with a velocity

→

=4(

) . The energy of B after collision is written as

J . The value of x is

[8 Jan 2020 Shift 1]

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