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4.1 , newtons laws of motion — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics4.1 , newtons laws of motion1 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
(c)According to law of conservation of linear momentum both pieces should possess equal momentum after explosion. As their masses are equal therefore they will possess equal speed in opposite direction.

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