PHYS_2014_Sample_Exam_1_soln

PHYS_2014_Sample_Exam_1_soln - PHYS2014 Benton Fall 2010...

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PHYS2014 Fall 2010 Benton OSU Physics Dept. Physics 2014: General Physics I Solutions to Sample Exam No. 1 1. Two billiard balls are rolling on a flat table. The first ball has a velocity of 2 m/s in the x direction and 1 m/s in the y direction. The second ball has a velocity of 3 m/s in the x direction and 2 m/s in the y direction. If both balls start from the same point, what is the angle between their paths. Solution: 1 2 1 1 1 2 ˆ ˆ B 2 1 ˆ ˆ B 3 2 1 tan 26.6 2 2 tan 33.7 3 33.7 26.6 7.1 = + = +   θ = = °       θ = = °     ° − ° = ° i j i j a a
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PHYS2014 Fall 2010 Benton OSU Physics Dept. 2. Last summer I took a trip by car to Chicago, IL. When I was ready to drive back to Stillwater, I decided I’d like to know the driving time and my average speed during the return trip. So I wrote down the time it took and the distance traveled for each leg of the trip and compiled them into the table below. a) Based on this data, determine my average speed during the drive. b) How much time would I save if I flew from Chicago to Tulsa on a small commuter jet and then drove by car from Tulsa to Stillwater? The straightline distance between Chicago and Tulsa is 960 km.
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PHYS_2014_Sample_Exam_1_soln - PHYS2014 Benton Fall 2010...

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