Saturday
March 28, 2015

Homework Help: Physics

Posted by MeganErin on Sunday, September 12, 2010 at 2:47pm.

A runner runs 2.9 km in 9 min and then takes 30 min to walk back to the starting point.
(a) What is the runner's average velocity for the first 9 min?
_______ km/h
(b) What is the average velocity for the time spent walking?
_______ km/h
(c) What is the average velocity for the whole trip?
_______ km/h
(d) What is the average speed for the whole trip?
_______ km/h

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