Question

If the speed of a body is 5 m/s. Find the time it would take to cover a distance of 6 km.

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

Answer 1

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

Given:
Speed, $v=5m/s$
Distance covered, $s=6km$

Converting speed to kmph
$v=5m/s$
$v=5\times \frac{1/1000km}{1/3600h}$
$v=\frac{5\times 3600}{1000}km/h$
$v=18km/h$

So, it takes the body 1 hr to cover a distance of 18 km.
Therefore, the time taken to cover a distance of 6 km will be:
$t=\frac{6}{18}\times 1hr$
$t=\frac{1}{3}hr$