Final answer:
To measure the speed of a toy car, you need something to measure distance and time. Speed is calculated as distance covered per unit time. A tool to measure distance and a stopwatch for time measurement would suffice.
Step-by-step explanation:
To measure the speed of a toy car, you definitely need a tool that measures distance. However, you equally need something to measure time. This is because speed is typically defined as the distance covered per unit of time. For instance, if your toy car travels 10 meters in 5 seconds, its speed will be 2 meters per second (m/s). Thus, by having a tool (like a meter stick or tape measure) for measuring the distance the toy car travels and another tool (like a stopwatch) for timing how long it takes, you can accurately measure the speed of the toy car.
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