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April 19, 2014

Homework Help: physics

Posted by MeganErin on Sunday, September 12, 2010 at 2:51pm.

A car travels in a straight line with an average velocity of 85 km/h for 2.5 h and then with an average velocity of 30 km/h for 1.5 h.
(a) What is the total displacement for the 4 h trip?
_____________________ km
(b) What is the average velocity for the total trip?
_____________________ km/h

I dont even know where to start please help me :) thankk youuuuuu

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