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Chapter 2: Q1. (page 41)

Does a car speedometer measure speed, velocity, or both? Explain.

Short Answer

Expert verified

The speedometer measures only the speed of the car.

Step by step solution

01

Step 1. Definitions of speed and velocity

The rate at which an object is displaced from one location to another is known as the object鈥檚 velocity. It has both direction and magnitude.

The rate of change in the object鈥檚 distance is known as the object鈥檚 speed. It has magnitude but no direction.

02

Step 2. Application of speedometer

A speedometer is a device that helps to estimate and visualize a vehicle's instantaneous speed, that has only magnitude. The speedometer does not give the direction of the vehicle.

Thus, this device can measure only the speed of a vehicle, not its velocity.

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Most popular questions from this chapter

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FIGURE 2-47 Problem 70
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