If a car is traveling at 20 mph, how far does it move in 3/4 of a second?

Prepare for the North Carolina Radar Operator Recertification Exam. Practice with our comprehensive quizzes that include varied question styles and detailed explanations. Ensure your success with targeted study materials!

Multiple Choice

If a car is traveling at 20 mph, how far does it move in 3/4 of a second?

Explanation:
To determine how far a car traveling at 20 mph covers in 3/4 of a second, it's essential to first convert the speed into a more manageable unit such as feet per second. First, we need to know how many feet are in a mile and how many seconds are in an hour: - There are 5,280 feet in a mile. - There are 3,600 seconds in an hour. Now, to convert 20 miles per hour to feet per second: \[ 20 \text{ miles/hour} \times \frac{5,280 \text{ feet/mile}}{3,600 \text{ seconds/hour}} = \frac{105,600 \text{ feet}}{3,600 \text{ seconds}} = 29.33 \text{ feet/second}. \] Next, we calculate the distance traveled in 3/4 of a second: \[ 29.33 \text{ feet/second} \times \frac{3}{4} \text{ second} = 29.33 \times 0.75 \approx 22 \text{ feet}. \] This calculation shows that the vehicle moves approximately 22 feet in 3/4 of

To determine how far a car traveling at 20 mph covers in 3/4 of a second, it's essential to first convert the speed into a more manageable unit such as feet per second.

First, we need to know how many feet are in a mile and how many seconds are in an hour:

  • There are 5,280 feet in a mile.

  • There are 3,600 seconds in an hour.

Now, to convert 20 miles per hour to feet per second:

[

20 \text{ miles/hour} \times \frac{5,280 \text{ feet/mile}}{3,600 \text{ seconds/hour}} = \frac{105,600 \text{ feet}}{3,600 \text{ seconds}} = 29.33 \text{ feet/second}.

]

Next, we calculate the distance traveled in 3/4 of a second:

[

29.33 \text{ feet/second} \times \frac{3}{4} \text{ second} = 29.33 \times 0.75 \approx 22 \text{ feet}.

]

This calculation shows that the vehicle moves approximately 22 feet in 3/4 of

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy