If a car travels 400m in 20 seconds how fast is it going, m/s?
Answers
speed = distance/ time
= 400/20
= 20 m/s
this is the way to do it
Answer:
If a car travels 400m in 20 seconds then the rate or the speed of the car is 20 m/second.
How to measure the rate of change of something as some other value changes?
Suppose that we have to measure the rate of change of y as x changes, then we have:
Distance/time
Remember that, we divide by the change in the independent variable so that we get some idea of how much the dependent quantity changes as we change the independent quantity by 1 unit.
(5 change per 3 units can be rewritten as 5/3 change per 1 unit)
Distance = rate * time
400 m = rate * 20 seconds
Divide each side by 20 seconds;
400m/ 20 seconds = rate
20 m/second = rate
Therefore, If a car travels 400m in 20 seconds then the rate of the car is 20 m/second. The rate of the car at which it is moving is also known as the speed.
To know more about the speed, refer: https://brainly.in/question/47776531
To know more about the distance refer: https://brainly.in/question/47777661
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