Question

converts km/hr to time in secs and converts km/h to m/s

Answer 1

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

1 km/h = 1000 meters / 3600 seconds = \( \frac{1}{3.6} \) m/s.

So, to convert km/h to m/s, you can divide the speed in km/h by 3.6.

**Conversion formula:**
\[
\text{Speed in m/s} = \frac{\text{Speed in km/h}}{3.6}
\]

**Example:**
If you have a speed of 72 km/h:
\[
\text{Speed in m/s} = \frac{72}{3.6} = 20 \text{ m/s}
\]

### Converting km/h to Time in Seconds

If you want to convert the distance traveled at a speed of km/h to time in seconds, you can use the following steps:

1. Convert the speed from km/h to m/s.
2. Determine how far (in meters) you want to travel.
3. Use the formula:

\[
\text{Time (seconds)} = \frac{\text{Distance (meters)}}{\text{Speed (m/s)}}
\]

**Example:**
If a vehicle is traveling at 72 km/h and you want to know how long it will take to travel 1000 meters:

1. Convert 72 km/h to m/s:
\[
\text{Speed in m/s} = \frac{72}{3.6} = 20 \text{ m/s}
\]

2. Use the formula for time:
\[
\text{Time} = \frac{1000 \text{ meters}}{20 \text{ m/s}} = 50 \text{ seconds}
\]

So, it would take 50 seconds to travel 1000 meters at a speed of 72 km/h.