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Laws of Motion — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSLaws of Motion2 Marks
Question
What is the C.G.S. unit of force? How is it defined?
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Answer

The C.G.S. unit of force is dyne.
One dyne is the force which acts on a body of mass 1 gramme and produces an acceleration of $1 cms ^{-2}$, i.e. 1 dyne $=1 g \times 1 cms ^{-2}$.

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