# Need Help In Physics Solving Word Problems

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A person travels by car from one city to another. She drives for 26.5 min at 88.4 km/h, 12.3 min at 97.4 km/h, 52.5 min at 33.5 km/h, and spends 15.7 min along the way eating lunch and buying gas.The distance between the cities along the route is 88.322 km

Jun 8th, 2015

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Jun 8th, 2015

Determine the average speed for the trip. Answer in units of km/h.

That is what I am looking for I left it out

Jun 8th, 2015
Total Distance traveled = 88.322 km
Total time taken  = 26.5 + 12.3+52.5+15.7 = 107 minutes or 107/60 =1.7833333 hrs

Average speed = Total distance traveled / ( total time taken )
hence Average speed = 88.322/1.783 = 49.526 km/hr

Average Speed = 49.53 km/hr (Answer)

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Jun 8th, 2015

is this wrong ???

Jun 8th, 2015

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Jun 8th, 2015
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Jun 8th, 2015
Nov 17th, 2017
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