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Center of Mass question

2020 · 9 Jan · Shift 1 · Q55
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Center of Mass question

2020 · 9 Jan · Shift 1 · Q55

JEE MainPhysicsCenter of MassMCQ+4 / −1
Two particles of equal mass m have respective initial velocities ui^u\widehat iui and u(i^+j^2)u\left( {{{\widehat i + \widehat j} \over 2}} \right)u(2i+j​​). They collide completely inelastically. The energy lost in the process is :
  1. A
    13mu2{1 \over 3}m{u^2}31​mu2
  2. B
    18mu2{1 \over 8}m{u^2}81​mu2
  3. C
    34mu2{3 \over 4}m{u^2}43​mu2
  4. D
    23mu2\sqrt {{2 \over 3}} m{u^2}32​​mu2
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