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PhysicsNEET 2022Newton's laws, inertia, impulse and momentum

Laws of Motion

A shell of mass mm is at rest initially. It explodes into three fragments having masses in the ratio 2 : 2 : 1. If the fragments having equal mass fly off along mutually perpendicular directions with speed vv, the speed of the third (lighter) fragment is:

  1. A.32 v3\sqrt{2}\,v
  2. B.vv
  3. C.2 v\sqrt{2}\,v
  4. D.22 v2\sqrt{2}\,v✓

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