Finding Speed of an object from various factors.

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SUMMARY

This discussion focuses on developing a Java program to calculate the speed of a cyclist based on factors such as cadence, wind speed, bike weight, and user weight. Key insights reveal that to accurately determine speed, one must also consider energy losses from air friction, rolling friction, and changes in height. Additionally, the dimensions of the bike's wheels, pedals, and sprockets are crucial as they influence energy input when using cadence as a variable. The discussion emphasizes the importance of foundational mechanics concepts in creating a reliable simulation.

PREREQUISITES
  • Understanding of basic physics principles, particularly mechanics.
  • Familiarity with Java programming language.
  • Knowledge of energy loss factors in cycling, including air and rolling friction.
  • Concepts of cadence and its impact on cycling performance.
NEXT STEPS
  • Research how to implement physics simulations in Java.
  • Learn about calculating energy losses due to air friction and rolling resistance.
  • Explore the relationship between cadence and speed in cycling.
  • Investigate the impact of bike geometry on performance metrics.
USEFUL FOR

Cycling enthusiasts, software developers interested in physics simulations, and anyone looking to enhance their understanding of cycling dynamics and performance metrics.

Rhotor
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Hello users of Physics Forums,I come here seeking some guidance with a program i am writing in java.The point of my program is to determine the speed of the user depending on the following factors: Cadence,windspeed,bike weight and user weight. While i got a good mark in my physics class, (90), we did not learn this, and i come to this forum in search of some help. Another feature of my program would be to determine the efficency of the pedal. I have absolutly no clue if this is possible, but if it is, that would be an awsome feature. Please note that this is not a homework question, but a question that I myslelf am interested.Thanks for your help,

Rhotor
 
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Rhotor said:
The point of my program is to determine the speed of the user depending on the following factors: Cadence,windspeed,bike weight and user weight.
All of these factors are not enough to calculate the speed of biker pedaling at a certain rate under a constant set of conditions.The moment when the biker reaches a constant speed it is the moment when his energy input is equal to the energy loss.This losses are due primarily to air friction but also to rolling friction and the energy used to change height.You need these factors in your simulation.You also need the dimensions of your wheel ,pedal and sprockets because they determine your energy input if you use cadence as your independent variable. To make this simulation you need to use all the concepts you learned in your first mechanics course.
 

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