Question

If an object covers 4 km in 4 minutes its speed is ……………… m/s and ……………… km/h.

Answer 1

Answer:

16.66 m/s and 240 km/h

Explanation:

if an object covers 4km in 4minutes then it speed is 16.66m/s or 240km/h

Answer 2

Given,

The object travels 4km in 4 minutes.

To find,

The speed of the object in m/s and km/h units.

Solution,

We can simply solve this numerical problem by using the following mathematical process.

So,

The object travels :

In 4 minutes = 4km

In (4×60) seconds = (4×1000)m

In 240 seconds = 4000m

In 1 second = 4000/240 m

In 1 second = 16.66 m

Similarly,

The object travels :

In 4 minutes = 4km

In 1 minute = 4/4 km

In 1 minute = 1 km

In 60 minutes = 1×60 km

In 1 hour = 60 km

Hence, the speed of the object is 16.66 m/s and 60km/h