Question

What will be the speed of a child running at a distance of 200 m in 4 hr​

Answer 1

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• To find speed:-
• $\rm \: time = \frac{distance}{time}$

Distance=200 m

Time = 4 hr

• for changing hour into second=

multiply the hour by 3600

4×3600

so, we get= 14400

applying into formula:-

$\frac{200}{14400} = 0.0139$

$\rm \: speed \: = 0.0139 \: m/s$

Answer 2

Answer:

Given:

Distance=200m

Time=4hr.

We have to change the hour to second.

For that,

We know that,

1hr.=3600 sec.

So,4hr=4×3600sec.

=14,400

To find:

• Speed

Solution:

Speed=$\bf\frac{Distance}{Time}$

Speed=$\bf\frac{200}{14,400}$

Speed=.$0.0139m/s$

Therefore,The child's speed is 0.0139 running at a distance of 200m in 4 hr. or 14400seconds.

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