An electric train is moving with a velocity of `120 km//h` . How much distance will it move in `30 s` ?

Explanation

To find out how much distance an electric train moving at a velocity of 120 km/h will cover in 30 seconds, we can follow these steps:

### Step 1: Convert the velocity from km/h to m/s
The formula to convert km/h to m/s is:
\[ \text{Velocity in m/s} = \text{Velocity in km/h} \times \frac{5}{18} \]
Substituting the given velocity:
\[ \text{Velocity in m/s} = 120 \times \frac{5}{18} \]
Calculating this gives:
\[ \text{Velocity in m/s} = 120 \times \frac{5}{18} = \frac{600}{18} \approx 33.33 \text{ m/s} \]

### Step 2: Use the formula for distance
The formula for distance when speed and time are known is:
\[ \text{Distance} = \text{Speed} \times \text{Time} \]
Here, the speed is 33.33 m/s and the time is 30 seconds. Substituting these values:
\[ \text{Distance} = 33.33 \text{ m/s} \times 30 \text{ s} \]

### Step 3: Calculate the distance
Now, we calculate the distance:
\[ \text{Distance} = 33.33 \times 30 = 999.9 \text{ meters} \]
Rounding this, we can say:
\[ \text{Distance} \approx 1000 \text{ meters} \text{ or } 1 \text{ kilometer} \]

### Final Answer
The electric train will travel approximately **1 kilometer** in 30 seconds.

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