Question

A body covers a distance of 20 km in 4 hours. Calculate the speed in kilomter per houre and meter per second.​

Answer 1

Answer:

According to the question,

Distance is 40 km and time is 4 hours

$\therefore \: speed = \frac{distance}{time} \\ \\ = speed = \frac{ \cancel{20} \: \: ^{5} }{ \cancel{4}} \\ \\ = 5km \hr$

It is 5 km/hr

Now to convert it to m/s we need to divide the speed with

$\frac{5}{18}$

So

$5 \times \frac{5}{18} \\ \\ = \frac{25}{18} \\ \\ = 1.38m \s$

It is 1.38m/s

$\Large\textsf{Hope \: It \: Helped}$