Accelerate Your Understanding
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Questions and Answers

Acceleration is defined as the change in ______ over time.

  • velocity (correct)
  • speed
  • time
  • distance

Which of the following is an example of acceleration?

  • A car traveling at a constant speed of 60 mph
  • A car parked in a parking lot
  • A car slowing down from 60 mph to 30 mph (correct)
  • A car traveling at a constant speed of 30 mph

What is the acceleration of a car that goes from 0 to 60 mph in 3 seconds?

  • 20 mph/s
  • 50 mph/s
  • 30 mph/s
  • 40 mph/s (correct)

Which of the following is the correct formula for acceleration?

<p>$a = \frac{\Delta v}{\Delta t}$ (A)</p> Signup and view all the answers

What is the acceleration of the Porsche 911 in miles per hour per second?

<p>20 miles per hour per second (B)</p> Signup and view all the answers

Which of the following is an equivalent unit for acceleration in the text?

<p>miles per hour-seconds (C)</p> Signup and view all the answers

Acceleration is often measured in units of meters per second squared. In the given example, what is the acceleration in meters per second squared?

<p>1/1800 (A)</p> Signup and view all the answers

If a car's speedometer shows an acceleration of 20 miles per hour every second, how much will the speedometer have moved after 3 seconds?

<p>60 miles per hour (A)</p> Signup and view all the answers

If a car's speedometer shows an acceleration of 20 miles per hour every second, how much will the speedometer have moved after 5 seconds?

<p>100 miles per hour (B)</p> Signup and view all the answers

Acceleration is often measured in units of ______ per second squared.

<p>miles</p> Signup and view all the answers

The acceleration of the Porsche 911 is 1/180 ______ per second squared.

<p>miles</p> Signup and view all the answers

After a second, the speedometer of the Porsche 911 would have moved ______ miles per hour.

<p>20</p> Signup and view all the answers

The acceleration of the Porsche 911 is 1/180 ______ per second.

<p>miles</p> Signup and view all the answers
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