A family drives 400 milles in 8 hours. Explain how the acceleration of their car changed?
There are many ways to go 400 miles in 8 hours. All you need to do is average 50 mph.
In the real world, you have to stop at traffic lights and stop signs; slow down when there is a slower driver ahead of you, and speed up to pass.
That is a crazy question.posted by drwls