A car travels at a speed of 50 m/s. for 5 hours. What is the distance (in km) travelled by the car?

Options

A. 1000
B. 900
C. 990
D. 500

Answer

To solve the problem of finding the distance traveled by a car that moves at a speed of 50 m/s for 5 hours, we can follow these steps:

### Step 1: Convert the speed from meters per second to kilometers per hour.
- We know that 1 meter = 0.001 kilometers and 1 hour = 3600 seconds.
- To convert speed from m/s to km/h, we can use the conversion factor:
\[ \text{Speed in km/h} = \text{Speed in m/s} \times \frac{3600 \text{ seconds}}{1000 \text{ meters}} = \text{Speed in m/s} \times 3.6 \]
- Therefore,
\[ \text{Speed in km/h} = 50 \, \text{m/s} \times 3.6 = 180 \, \text{km/h} \]

### Step 2: Calculate the distance traveled using the formula:
- The formula for distance is:
\[ \text{Distance} = \text{Speed} \times \text{Time} \]
- We have the speed as 180 km/h and the time as 5 hours.
- Thus,
\[ \text{Distance} = 180 \, \text{km/h} \times 5 \, \text{h} = 900 \, \text{km} \]

### Step 3: Conclusion
- The distance traveled by the car is 900 kilometers.

### Final Answer:
- The distance traveled by the car is **900 km**.

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