3
Question
From Newton's laws of motion, one can infer that
I. Newton's first law describes the motion of a body free of external forces
II. Newton's second law relates force to motion
III. Newton's third law is not directly a statement about motion, but a statement about forces acting on bodies
IV. Newton's third law lead to the principle of conservation of momentum
Which combination of the given statements is true?
From Newton's laws of motion, one can infer that
I. Newton's first law describes the motion of a body free of external forces
II. Newton's second law relates force to motion
III. Newton's third law is not directly a statement about motion, but a statement about forces acting on bodies
IV. Newton's third law lead to the principle of conservation of momentum
Which combination of the given statements is true?
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Solution
The correct option is C I, II and III only
Newton's first law deal with the state of motion of body until any external force is acted upon the body.newton's second is all about the relation between the force upon a body and the acceleration of the body.Newton's third deal with action reaction pair of bodies on which force is acted upon.
Newton's third law is nothing to do with the conservation of momentum. So, statement (IV) is wrong .So,option (C) is correct.
Newton's first law deal with the state of motion of body until any external force is acted upon the body.
newton's second is all about the relation between the force upon a body and the acceleration of the body.
Newton's third deal with action reaction pair of bodies on which force is acted upon.
Newton's third law is nothing to do with the conservation of momentum. So, statement (IV) is wrong .
So,option (C) is correct.
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