A model train moves 18.3 m in 122 s. What is the average speed?
Understand the Problem
The question is asking to calculate the average speed of a model train that travels a distance of 18.3 meters in 122 seconds. To solve this, we will use the formula for average speed, which is distance divided by time.
Answer
The average speed is approximately $0.15 \, \text{m/s}$.
Answer for screen readers
The average speed of the model train is approximately (0.15 , \text{m/s}).
Steps to Solve
- Identify the formula for average speed
The average speed can be calculated using the formula: $$ \text{Average Speed} = \frac{\text{Distance}}{\text{Time}} $$
- Substitute the known values into the formula
Here, the distance is 18.3 meters and the time is 122 seconds. Plugging in these values gives: $$ \text{Average Speed} = \frac{18.3 , \text{m}}{122 , \text{s}} $$
- Perform the division
Now, calculate the average speed: $$ \text{Average Speed} = \frac{18.3}{122} \approx 0.150 , \text{m/s} $$
The average speed of the model train is approximately (0.15 , \text{m/s}).
More Information
Average speed provides a measure of how fast an object is moving over a specific distance and time period. In this case, the model train's average speed gives insight into its performance over the measured distance.
Tips
- Miscalculating the division: Ensure to perform the calculation accurately.
- Confusing units: Make sure to keep track of meters and seconds to avoid mixing them up.
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