Homework Help: physics

Posted by tom on Tuesday, August 23, 2011 at 12:07am.

A car travels along a straight stretch of road.
It proceeds for 15 mi at 55 mi/h, then 29 mi
at 43 mi/h, and ﬁnally 37.9 mi at 33.7 mi/h.
What is the car’s average velocity during
the entire trip?
Answer in units of mi/h

physics - drwls, Tuesday, August 23, 2011 at 1:39am
Average velocity = (Total miles)/(Total time)

The total time is 15/55 + 29/43 + 37.9/33.7 = 2.072 hours

The total miles is 15 + 29 + 37.9 = 81.9 mi

Finish the calculation.

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