Kinematics(Find Distance Between 2 curves)

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SUMMARY

The discussion focuses on calculating the distance between two athletes as one passes the 100 m mark using speed vs. time graphs. The key method involves determining the time at which the area under the winner's graph equals 100 m, then calculating the area under the loser's graph at that same time to find the loser's distance. Participants emphasize the importance of understanding the relationship between speed, time, and distance in kinematics. The solution requires accurate graph interpretation and area calculation.

PREREQUISITES
  • Understanding of kinematics principles, specifically speed, time, and distance relationships.
  • Familiarity with graph interpretation, particularly speed vs. time graphs.
  • Knowledge of calculating areas under curves to determine distance.
  • Basic proficiency in calculus concepts, particularly integration, if applicable.
NEXT STEPS
  • Research methods for calculating areas under curves in speed vs. time graphs.
  • Learn about kinematic equations and their applications in real-world scenarios.
  • Explore graphical analysis techniques for comparing multiple motion profiles.
  • Study integration techniques for finding areas under curves in calculus.
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Students studying physics, particularly those focusing on kinematics, as well as educators and anyone interested in understanding motion analysis through graphical methods.

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DarkPhoenix said:
https://www.physicsforums.com/attachment.php?attachmentid=21003&stc=1&d=1255013927

I need help for number 1(b)

State the distance between the two athletes as the winner passes the 100 m mark.

Tried to find the are under graph, but does not work.

Thanks.
I can't view your graphs but I expect they show two curves on a speed vs. time graph, one for each runner both starting from (0,0).

The area under each graph gives the distance. What you have to do is find the time when the area (= speed x time = distance) under the winner's graph is equal to 100 m. Then calculate the area under the loser's graph at that time to find the loser's distance.

AM
 

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