Why won’t the man attempting to pull himself by tugging on his hair not
succeed?
(a) The frictional force in play while gripping is small.
(b) The exerted force is small.
(c) The force applied is internal to the system.
(d) Newton’s law of inertia is not applicable to living beings.
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A student attempts to pull himself up by tugging on his hair. He will not succeed [KCET 2005] A) As the force exerted is small. ... The frictional force while gripping, is small.
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