Question

The speed of a body is $5m{s}^{-1}$. The time it would take to cover a distance of 6 $km$ is ___ .

• A. $\frac{1}{3}$ hour
• B. $\frac{2}{3}$ hour
• C. 1 hour
• D. $\frac{1}{5}$ hour

Answer 1

The correct option is A $\frac{1}{3}$ hour

Given:
Speed = $5m{s}^{-1}$
Distance travelled = 6 $km$ = 6000 $m$.
We know that,
Distance = Speed x Time
$\Rightarrow$Time = $\frac{\text{Distance}}{\text{Speed}}$ = $\frac{6000m}{5m{s}^{-1}}$
$\Rightarrow$Time$=1200s$
$1hr$ $=60min$ = $3600s$
$\therefore$1200 $s$ = $\frac{1200}{3600}$ $hr$ = $\frac{1}{3}$ $hr$.