Question

The speed of train 10m/s. How much distance will it cover in 2hr​

Answer 1

Solution:-

$\sf \: Speed = 10m/s \\ </p><p> \sf \: Time \: covered = 2 hour \\ </p><p> \sf \therefore \: Need \: to \: find \: the \: distance$

Let distance be d , Speed be s, Time be t .

$\sf \: s = \frac{d}{t} \\ \sf⇒10m/s = \frac{d}{2hr} \\ \sf⇒10 = \frac{d}{2 \times 60 \times 60} \\ \sf \: ⇒ \frac{d}{7200} \\ \sf \: ⇒10 \times 7200 = d \\ \sf \: ⇒d = 72000 \\ \\ \sf \therefore \: distance = 72000m \: or \: 72 \: km$

Let's know more:-

1.Speed:- The rate of change of position of a moving body is called speed.

2. Unit of speed:- m/s , km/hr , km/m

3. Average speed :- $\sf {\Large \frac{total \: distance \: travel}{time \: taken}}$

Answer 2

☆ Solution ☆

Given :-

• The speed of train 10m/s.

To Find :-

• How much distance will it cover in 2 hr.

Step-by-Step-Explaination

As we know that :-

Formula of speed = speed = $\dfrac{distance}{time \: taken}$

According to the question

10 m / s = $\dfrac{distance}{2 hr}$

10 = $\dfrac{distance}{2 × 60 × 60}$

=> $\dfrac{distance}{7200}$

=> 10 × 7200

=> distance = 72000

Hence,

The train covered 72000 m or 72 km in 2 hr.

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☆ Additional Information ☆

Formula of Speed = speed = $\dfrac{distance}{time \: taken}$

Formula of Distance = Distance = $\sqrt{(x2 - x1)^2 + ( y2 - y1 )^2}$

Formula of Time = Time = $\dfrac{distance}{speed}$

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