Question

Numericals. A soldier marches at the speed of 2m/s .What distance will he covers in one
hour ?​

Answer 1

Answer:

7200 m or 7km 200m.

Explanation:

As per the provided information in the given question, we have :

• A soldier marches at the speed of 2m/s .

We are asked to calculate the distance he would cover in 1 hour.

According to the question,

• Speed (v) = 2 m/s
• Time (t) = 1 hour

In order to calculate distance, firstly we need to convert time in its standard form.

⇒ Time = 1 hour

• 1 hour = 60 minutes

⇒ Time = 60 minutes

• 1 minute = 60 seconds, so

⇒ Time = (60 × 60) seconds

⇒ Time = 3600 seconds

∴ Time taken is 3600 seconds.

★ Calculating distance covered in one hour :

⇒ s = v × t

• s denotes distance
• v denotes speed
• t denotes time

⇒ s = (3600 × 2) m

⇒ s = 7200 m

∴ Distance covered in one hour is 7200 m or 7km 200m.

$\rule{200}2$

More Information :

• Distance is the total length of path covered by the body.
• SI unit of distance is metre (m).
• Distance is a scalar quantity.
• Speed is defined as distance covered divided by time taken.
• SI unit of speed is m/s.
• Speed is a scalar quantity.

Answer 2

Answer:-

• Speed=2m/s
• Time=1hour

Convert time into seconds.

$\\ \rm\longmapsto 1hour=(60\times 60)s$

$\\ \rm\longmapsto 1hour=3600s$

Now

As we know that

$\boxed{\sf Distance=Speed\times Time}$

$\\ \rm\longmapsto Distance=2\times 3600$

$\\ \rm\longmapsto Distance=7200m$

$\\ \rm\longmapsto Distance=7.2km$