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Motion in One Dimension — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSMotion in One Dimension2 Marks
Question
Express $15 m s^{-1} in km h^{-1}.$
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Answer

15 m/s = $\frac{15}{1000}$ km/hr
or , $15 m/s = 54 km/hr^{-1}$​​​​​​​

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