Consider the following pair of forces of equal magnitude and opposite directions
Consider the following pair of forces of equal magnitude and opposite directions:
(P) Gravitational forces are exerted on each other by two-point masses separated by a distance.
(Q) Couple of forces are used to rotate a water tap.
(R) Gravitational force and normal force are experienced by an object kept on a table. For which of these pair/pairs the two forces do NOT cancel each other’s translational effect?
(A) Only P
(B) Only P and Q
(C) Only R
(D) Only Q and R
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