What is true about a car with constant velocity? A. It has a zero acceleration
B. It has a changing direction
C. postive acceleration
D. Negative acceleration

The answer and explanation to your question in a file. Link below!

xlnk․cf/tcMG

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

your answer would be “dry”