A student 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

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

Answer

d

Explanation

According to Newton.s first law of motion, the state of rest or motion of body in a straight line with uniform velocity remains the same unless an external force is applied on the body.