A student attempts to pull himself up by tugging on his hair. He … - Vidyadip

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
(d)As by an internal force momentum of the system can not be changed.

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