The two quantities necessary for calculating speed are

Understand the Problem

The question is asking about the two quantities that are essential for calculating speed, which typically involves distance and time.

More Information

To calculate speed, you need to know the total distance an object has traveled and the total time it has taken to travel that distance. Speed is a scalar quantity, representing only magnitude, which differentiates it from velocity.

Tips

A common mistake is confusing speed with velocity, which requires direction in addition to magnitude.

Sources

• Science Flashcards - Quizlet - quizlet.com
• What two measurements are necessary for calculating average speed - Study.com - homework.study.com