Wednesday

March 4, 2015

March 4, 2015

Posted by **Anonymous** on Thursday, January 17, 2013 at 5:59pm.

- physics -
**Anonymous**, Thursday, January 17, 2013 at 7:31pmI am assuming that the truck is traveling West the whole time.

I would start by calling the 90 km/hr section part 1 and the 110 km/hr section part 2. Then convert the 10 min into hours to make your life easier. It comes out to be 0.17 hours. (10/60=0.16666...) Next figure out the time for part two using the definition of velocity, v= d/t where v is velocity, d is displacemnet and t is time. Turns out it traveled for 0.35 hr.

Now there's probablly an easier way to do this, but this is how I know.

First figure out how far the truck went in part one by multiplying the velocity by the time. Should come out to be 15.3 km. Then do the same for part two. It should be 38.5 km.

Then use the equation Vavg=(d)/(t) where Vavg is the average velocity, d is the total distance traveled and t is the total time. Divide them and you'll have your answer.

I would NOT use the decimals I rounded to and solve it again, but this should give you an idea of how to work the problem. Hope it helps.

**Answer this Question**

**Related Questions**

physics - A motorist drives south at 26.0 m/s for 3.00 min, then turns west and ...

Physics - Could someone please review my answers and tell me if I am on the ...

Physics - A truck travels 2.85 km north and then makes a 90° left turn and ...

physics - A truck on a straight road starts from rest, accelerating at 2.00 m/s2...

Physics - A truck on a straight road starts from rest and accelerates at 2.8 m/s...

Physics - A bus travels 280 km south along a straight path with an average ...

physics - A truck on a straight road starts from rest and accelerates at 2.0 m/...

Physics - A truck on a straight road starts from rest, accelerating at 2.00 m/s2...

College Physics!!! - A truck on a straight road starts from rest accelerating at...

Physics - A bus travels 290 km south along a straight path with an average ...