(A) effect of force (X)
(B) existence of a force (X)
(C) existence of two forces (X)
(D) existence of pair of forces in nature ()
Answers: 3rd law of motion explains existence of pair of forces in nature.
(A) effect of force (X)
(B) existence of a force (X)
(C) existence of two forces (X)
(D) existence of pair of forces in nature ()
Answers: 3rd law of motion explains existence of pair of forces in nature.
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