Laws Of Motion Question 381
Question: A student attempts to pull himself up by tugging on his hair. He will not succeed[KCET 2005]
Options:
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.
D) As the force applied is internal to the system.
Show Answer
Answer:
Correct Answer: D
Solution:
As by an internal force momentum of the system can not be changed.
