Per NCERT §4.6 (action and reaction labelling), which statement about the labels is true?
AAction always precedes reaction
BEither force may be called action
CReaction is always smaller
DReaction is always slightly delayed
Answer & Solution
Correct answer: B. Either force may be called action
NCERT §4.6: labels are arbitrary. Both forces are simultaneous and there is no causal precedence.
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