Express $54 k m p h$ in $m s^{- 1}$ .

15

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30

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45

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60

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Solution

The correct option is B $15$
$54 k m p h =$ $\frac{54 \times 1000}{60 \times 60}$ $m s^{- 1}$ $= 15 m s^{- 1}$

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Express 54kmph in ms−1.

The correct option is B 1554kmph=54×100060×60 ms−1=15ms−1

Express $54 k m p h$ in $m s^{- 1}$ .

The correct option is B $15$
$54 k m p h =$ $\frac{54 \times 1000}{60 \times 60}$ $m s^{- 1}$ $= 15 m s^{- 1}$