A person pushing a wall hard is liable to fall back. Which law is related for this ?

Newton's first law

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Newton's second law

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Newton's third law

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Newton's gravitational law

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Solution

The correct option is C Newton's third law
If a person applies a force $F$ on the wall, wall applies the same force on the person in opposite direction. Since wall is very massive as compared to the person, it doesn't move, but the person is likely to fall back because of the reaction force.

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Similar questions

A person pushing a wall hard is liable to fall back. Give reason.

Column I	Column II
(A) Kepler's first law	(p) $T^{2} \propto a^{3}$
(B) Kepler's second law	(q) Inverse square law
(C) Kepler's third law	(r) Orbit of planet is elliptical
(D) Newton's law of gravitation	(s) Law of conservation of angular momentum

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