Posted by **Natalie** on Monday, September 5, 2011 at 3:57pm.

From t = 0 to t = 5.00 min, a man stands still, and from t = 5.00 min to t = 10.0 min, he walks briskly in a straight line at a constant speed of 2.3 m/s.

(a) What is his average velocity vavg in the interval 2.000 min to 7.90 min?

I found this to be 1.15 m/s

(b) What is his average acceleration aavg in the interval 2.00 min to 7.90 min?

How do I go about solving this?

Would I do 1.15m/s divided by 354 seconds?

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