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Question: Answered & Verified by Expert
A Student is unable to answer a question on Newton's laws of motion attempts to pull himself up by tugging on his hair. He will not succeed :
PhysicsLaws of MotionNEET
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
Solution:
1374 Upvotes Verified Answer
The correct answer is: As the force applied is internal to the system
In this case internal force is applied on the system, so he will not succeed. According to Newton's law the state of a body can only be changed if some external force is applied on it.

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