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Work, Energy, Power and Collision — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsWork, Energy, Power and Collision1 Mark
MCQ
A shell initially at rest explodes into two pieces of equal mass, then the two pieces will
  • A
    Be at rest
  • B
    Move with different velocities in different directions
  • ✓
    Move with the same velocity in opposite directions
  • D
    Move with the same velocity in same direction
✓

Answer

Correct option: C.
Move with the same velocity in opposite directions
(c) According to law of conservation of linear momentum both piecesshouldpossessequalmomentum after explosion. As their masses are equal therefore they will possess equal speed inopposite direction.

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