Question

A car drives around a racetrack for 30 seconds. What do you need to know to
calculate the average speed of the car?

A. The slope of the car's position-time graph

B. The total distance driven on the racetrack

C. The area under the position-time graph

D. The slope of the car's velocity-time graph
SUBMIT​

Answer 1

To calculate the average speed of the car, we need

B. The total distance driven on the racetrack

Explanation:

The average speed of an object in motion is given by

$speed = \frac{d}{t}$

where

d is the distance covered by the object

t is the time interval considered to calculate the speed

The SI units of the speed are metres per second (m/s).

In this problem, we know the time interval:

t = 30 s

Therefore, in order to find the average speed, by looking at the equation we see that we also need the total distance driven by the car, so the correct answer is

B. The total distance driven on the racetrack

Learn more about speed:

brainly.com/question/8893949

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