Question

Object ‘A’ moves at 12 m/s and object 'B' moves at 18 km/h. Which
object is moving faster?

Answer 1

Answer:

object A is faster than Object B.

Explanation:

speed of object A in km/hr=12×18/5=216/5 km/hr=43.2 km/hr

speed of object B in km/hr=18 km/hr

So object A is faster than Object B.

Answer 2

Answer:

Object B moves faster

Explanation:

Convert into metre per second.

In one hour, there are 60 minutes, in one minute 60 second, so there are 3600 seconds in one hour.

And 1 kilometre is 1000 metre, so 18 kilo(thousand)metre means 18thousand metre ie 18,000 metre.

Therefore, 18000m per 3600 is 18000÷3600 (m/s)

The answer is 5m/s.

As the object A is moving at the speed of 12m/s or 12km/h it is clear that object B is moving faster.