Exam #4 Review

1.Snyder students drove 700 km from PA to MA. They left at 7 am and arrived in MA at 3 pm. The students visited an aquarium for 2 hours during the trip. A. What was their average speed while they were on the road? (show all work)

V= d/t V= 700 km/ 6 hr V= km/hr

1.Snyder students drove 700 km from PA to MA. They left at 7 am and arrived in MA at 3 pm. The students visited an aquarium for 2 hours during the trip. B. What was their average speed on the way to MA? (show all work)

V= d/ t V= 700 km/ 8hr V= 87.5 km/hr

2. Gus and Sally have a race. They race to the park and back. The park is 5 km away. Gus takes 20 minutes to get to the park and 15 minutes to get home. Sally takes 18 minutes to get to the park and 16 minutes to get home. A. Whose leg- to or from the park- was the fastest? (show all work)

V= d/t V= 5/15 =.33 V= 5/20 =.25 V= 5/18.27 V= 5/16 =.31

2. Gus and Sally have a race. They race to the park and back. The park is 5 km away. Gus takes 20 minutes to get to the park and 15 minutes to get home. Sally takes 18 minutes to get to the park and 16 minutes to get home. B. Which person had the faster average speed for the whole trip to the park and back? (show all work)

V=d/t V= 10/35 =.28 V= 10/34 =.29

3. I took a trip to Hawk Mountain. I left at 10 am and drove 50 km. I stopped half way (around noon) to change a flat tire. That took 20 minutes. I arrived at my destination at 1 pm. A. Create a data table B. Make a distance graph C. Make a position graph

Delta tdelta xtxd 2 hr25 km2hr25 km25 km.33hr km25 km.66hr25 km3 hr50 km50 km