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Newton's Laws of Motion — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsNewton's Laws of Motion1 Mark
MCQ
A student attempts to pull himself up by tugging on his hair. He will not succeed
  • A
    As the force exerted is small
  • B
    The frictional force while gripping, is small.
  • C
    Newton's law of inertia is not applicable to living beings.
  • ✓
    As the force applied is internal to the system.
✓

Answer

Correct option: D.
As the force applied is internal to the system.
(d) As by an internal force momentum of the system can not be changed.

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