![]() Its average velocity might be 25 miles per hour due east.Īverage speed can be viewed as the rate of change in distance with respect to time. For example, we might say that a car has an average speed of 25 miles per hour. A vector quantity is defined by magnitude and direction. A related concept, average velocity, is a vector quantity. It’s a scalar quantity which means it is defined only by magnitude. The average speed of an object is the total distance traveled by the object divided by the elapsed time to cover that distance. ![]() You asked yourself, ‘How can a sports car have such a pitiful average speed?’ and tried to recall how much you paid for it. At the end of your trip, your friend tells you that your average speed during the trip is 36 miles per hour. Your car is capable of speeds up to 220 mph. You and your friend decided to take your brand new red sports car out for a spin.
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