MCQ
How will you convert the speed given in km/ h to $m/ s?$
  • A
    By multiplying with $5/16.$
  • B
    By multiplying with $6/5.$
  • C
    By multiplying with $18/5.$
  • By multiplying with $5/18.$

Answer

Correct option: D.
By multiplying with $5/18.$

Conversion of $km/ h$ into $m/ s.$
$1km = 1000m$ and $1h = 60min = 3600s$
$\Rightarrow\ \frac{1\text{km}}{1\text{h}}=\frac{1000\text{m}}{3600\text{s}}=\frac{5}{18}\text{m/s}$

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