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5.work,energy,power and collision — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics5.work,energy,power and collision1 Mark
MCQ
A particle of mass $m$ moving with a velocity $\vec V$ makes a head on elastic collision with another particle of same mass initially at rest. The velocity of the first particle after the collision will be
  • A
    $\vec V$
  • B
    $ - \vec V$
  • C
    $ - 2\vec V$
  • ✓
    Zero
✓

Answer

Correct option: D.
Zero
d
(d)In perfectly elastic head on collision of equal masses velocities gets interchanged

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