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Again I find my self struggling on a question I had on a test, as my teacher is a "general studies" teacher, she is not much help with physics.

the question is:

What is the average speed of the car for the 10 second interval?

I have uploaded the graph provided, if you can't see the graph. It is a standard velocity vs time graph. I have done some other searching on the internet, and what I have tried to do was:

(v_{2}+V_{1}/ 2= v_{avg})t

which did not bring me to the correct answer. I can do the math just fine, I am just not sure what formula I need to be using to find average speed on a velocity Vs. time graph.

Thanks for the help

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# Homework Help: Finding average speed on a velocity vs time graph

**Physics Forums | Science Articles, Homework Help, Discussion**