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Motion in One Dimension — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSMotion in One Dimension1 Mark
Question
The acceleration of a body is $8.5 ms^{-2}$. What does this statement mean?
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Answer

If a body has acceleration of $8.5 ms^{-2}$ then it means its velocity is increasing at a rate of $8.5 ms^{-1}$ per second.

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