Isha Lohan posted an Question
September 14, 2020 • 13:08 pm 30 points
  • IIT JAM
  • Physics (PH)

Question: 49/60 a body of mass 2 kg makes an elastic collision with another body at rest and continues to move in the original direction with a speed to one thi

Question: 49/60 A body of mass 2 kg makes an elastic collision with another body at rest and continues to move in the original direction with a speed to one third of its original speed. Find the mass of the second body.

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    Ruby negi Best Answer

    see

    cropped-1655896757.jpg
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    diagram..

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    why is there minus 1, e=1, then why minus sign?

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    see the formula of e, that is final velocity of (first mass- final velocity of second mass )/(initial of second mass- initial of first mass-),but here they took ( final of first- second)/( initial of first - second). so automatically minus sign come out...

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    do it useful, u will get to know...

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    urself*

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