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Unitary Method

Express the f...

Question

Express the following speed in km/h. $2$ m per second.

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Solution

Now,
$1$ km/h $= \frac{1000}{3600} = \frac{5}{18}$ m/sec.
or, $1$ m/sec $= \frac{18}{5}$ km/hr.
or, $2$ m/sec $= \frac{36}{5}$ km/hr.

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