Question

QVII. A) A car travelled 720 km in 5 hour. Find its speed in kilometre.
B)Convert 20 m/s into Km/h.​

Answer 1

Answer:

speed144 pr hour

Explanation:

720÷5=144

Answer 2

Explanation:

A)

We know that,

speed = distance/time

distance traveled is 720 km & time required to travel this distance is 5 hours.

therefore,

Speed=720/5

Speed= 144 kmph.

B)

Here is a quick conversion method,

if we want to convert m/s into km/h

Just multiply 18/5 to the value in m/s

We get value in km/h.

therefore,

$= 20 \times \frac{18}{5}$

$= 72$

=72 kmph.