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$1 km h^{- 1}$ = ____ $m s^{- 1}$

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Detailed Solution

1 km h^{- 1}

\frac{5}{18} m s^{- 1}

Velocity of an object is defined as change in displacement per unit time interval

velocity = \frac{displacement}{time}

The SI unit of velocity is

m / s

To convert

1 km / h

into

m / s

we can write it as
⇒1

\frac{km}{h} = 1 \times \frac{1000 m}{60 \times 60 s}

\Rightarrow 1 \frac{km}{h} = \frac{1000 m}{3600 s}

\Rightarrow 1 \frac{km}{h} = \frac{5 m}{18 s}

To convert the unit term

km / h

m / s

, multiply with

5 / 18

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