Stopping Distance Teacher: Chelsea Hoglund Summer Institute 2011.
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Transcript of Stopping Distance Teacher: Chelsea Hoglund Summer Institute 2011.
![Page 1: Stopping Distance Teacher: Chelsea Hoglund Summer Institute 2011.](https://reader030.fdocuments.in/reader030/viewer/2022032704/56649d6c5503460f94a4b6e9/html5/thumbnails/1.jpg)
Stopping Distance
Teacher: Chelsea HoglundSummer Institute 2011
![Page 2: Stopping Distance Teacher: Chelsea Hoglund Summer Institute 2011.](https://reader030.fdocuments.in/reader030/viewer/2022032704/56649d6c5503460f94a4b6e9/html5/thumbnails/2.jpg)
•DEMONSTRATION OF STOPPING DISTANCES
![Page 3: Stopping Distance Teacher: Chelsea Hoglund Summer Institute 2011.](https://reader030.fdocuments.in/reader030/viewer/2022032704/56649d6c5503460f94a4b6e9/html5/thumbnails/3.jpg)
SPEED REACTION DISTANCE
BRAKING DISTANCE
TOTAL DISTANCE
![Page 5: Stopping Distance Teacher: Chelsea Hoglund Summer Institute 2011.](https://reader030.fdocuments.in/reader030/viewer/2022032704/56649d6c5503460f94a4b6e9/html5/thumbnails/5.jpg)
•WHAT DID YOU NOTICE?
![Page 6: Stopping Distance Teacher: Chelsea Hoglund Summer Institute 2011.](https://reader030.fdocuments.in/reader030/viewer/2022032704/56649d6c5503460f94a4b6e9/html5/thumbnails/6.jpg)
Reaction Distance
Braking Distance
Total Distance = Reaction Distance + Braking Distance
![Page 7: Stopping Distance Teacher: Chelsea Hoglund Summer Institute 2011.](https://reader030.fdocuments.in/reader030/viewer/2022032704/56649d6c5503460f94a4b6e9/html5/thumbnails/7.jpg)
•NEW VOCABULARY
TERMS??
![Page 8: Stopping Distance Teacher: Chelsea Hoglund Summer Institute 2011.](https://reader030.fdocuments.in/reader030/viewer/2022032704/56649d6c5503460f94a4b6e9/html5/thumbnails/8.jpg)
FORMULA TO CALCULATE STOPPING DISTANCE
• Reaction DistanceR =3.675V
B =V2
10.43
Assuming Reaction Time is 2.5 Seconds
Assuming grade is 0%
•Total Distance = R + B
• Braking DistanceV = Velocity
V = Velocity
![Page 9: Stopping Distance Teacher: Chelsea Hoglund Summer Institute 2011.](https://reader030.fdocuments.in/reader030/viewer/2022032704/56649d6c5503460f94a4b6e9/html5/thumbnails/9.jpg)
• SCENARIO 1:
If you are driving 34 mph and see a cat in the road 200 feet ahead will you stop in time to avoid hitting the cat?
![Page 10: Stopping Distance Teacher: Chelsea Hoglund Summer Institute 2011.](https://reader030.fdocuments.in/reader030/viewer/2022032704/56649d6c5503460f94a4b6e9/html5/thumbnails/10.jpg)
• SCENARIO 2:
You are driving 48 mph and see a mother duck and her ducklings crossing the road 550 feet ahead. If you stop now, will you be able to stop in time to avoid hitting them?
![Page 11: Stopping Distance Teacher: Chelsea Hoglund Summer Institute 2011.](https://reader030.fdocuments.in/reader030/viewer/2022032704/56649d6c5503460f94a4b6e9/html5/thumbnails/11.jpg)
CHALLENGE:
You stopped your car in 500 feet, how fast were you going?