A speed of 36 km/hr is the same as

Options

A. 10m/sec
B. 7.2m/sec
C. 2m/sec
D. 129.6m/sec

Answer

To convert a speed from kilometers per hour (km/h) to meters per second (m/s), we can use the following conversion factors:

1 kilometer = 1000 meters
1 hour = 3600 seconds

### Step-by-Step Solution:

1. **Start with the speed in km/h**:
We have a speed of 36 km/h.

2. **Convert kilometers to meters**:
Since 1 kilometer is equal to 1000 meters, we can convert 36 kilometers to meters:
\[ 36 \text{ km} = 36 \times 1000 \text{ m} = 36000 \text{ m} \]

3. **Convert hours to seconds**:
Since 1 hour is equal to 3600 seconds, we can express the speed in seconds:
\[ 1 \text{ hour} = 3600 \text{ seconds} \]

4. **Calculate the speed in m/s**:
Now we can convert the speed from km/h to m/s by dividing the total meters by the total seconds:
\[ \text{Speed in m/s} = \frac{36000 \text{ m}}{3600 \text{ s}} = 10 \text{ m/s} \]

5. **Conclusion**:
Therefore, a speed of 36 km/h is the same as 10 m/s.

### Final Answer:
36 km/h = 10 m/s