Posted by **Jacky** on Sunday, November 11, 2012 at 3:00pm.

Sally travels by car from one city to another. She drives for 36.5 min at 90.7 km/h, 13.3 min at 120 km/h, and 57.4 min at 45.6 km/h, and she spends 16.3 min eating lunch and buying gas.

Find the total distance traveled.

Answer in units of km

- Physics -
**bobpursley**, Sunday, November 11, 2012 at 3:58pm
change each time to hrs..

then figure each distance segement

distance1=90.7km/hr (36.5/60 hr)=...

then do all the distances that way.

add the distances to get time total distance

a nice second question is what was the average speed for the trip:

avg speed=totaldistance/totaltime

- Physics -
**Anonymous**, Monday, December 3, 2012 at 11:31pm
ally travels by car from one city to another. She drives for 23.0 min at 80.0 km/h, 31.0 min at 35.0 km/h, and 31.0 min at 19.0 km/h, and she spends 5.0 min eating lunch and buying gas.

(a) Determine the average speed for the trip.

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