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Post Test: Forces and Motion
Select the correct answer.
A car moves with an average speed of 45 miles/hour. How long does the car take to travel 90 miles?
A. 2 minutes B. 2 hours C. 45 minutes D. 45 hours E. 90 minutes
To solve the problem of determining how long it takes for a car moving at an average speed of 45 miles per hour to travel 90 miles, let's follow a detailed, step-by-step approach.
1. Identify the given values: - Speed: 45 miles per hour (mph) - Distance: 90 miles
2. Recall the formula for time: [tex]\[
\text{Time} = \frac{\text{Distance}}{\text{Speed}}
\][/tex]
3. Plug in the given values into the formula: [tex]\[
\text{Time} = \frac{90 \text{ miles}}{45 \text{ miles per hour}}
\][/tex]
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