A car travels in a straight line with an average velocity
Chapter , Problem 44(choose chapter or problem)
A car travels in a straight line with an average velocity of 80 km/h for 2.5 h and then with an average velocity of 40 km/h for 1.5 h. (a) What is the total displacement for the 4.0-h trip? (b) What is the average velocity for the total trip?
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