Bicycle Distance: Kinematics & Friction Coefficient

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SUMMARY

The discussion focuses on calculating the stopping distance of a bicycle given a friction coefficient of 0.36 and a speed of 25 km/h. The total mass of the girl and the bike is 95 kg. To determine the stopping distance, one must first calculate the kinetic friction force (Fk) and then derive the negative acceleration from it. This approach is essential for solving the problem accurately.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Basic knowledge of kinematics
  • Familiarity with the concept of friction coefficients
  • Ability to perform calculations involving mass, force, and acceleration
NEXT STEPS
  • Learn how to calculate kinetic friction force using the formula Fk = μ * m * g
  • Study the equations of motion to understand how to apply negative acceleration
  • Explore the relationship between speed, distance, and time in kinematic equations
  • Investigate real-world applications of friction in cycling and vehicle dynamics
USEFUL FOR

Students studying physics, particularly those focusing on kinematics and friction, as well as educators looking for practical examples to illustrate these concepts.

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Homework Statement

[/B]
A girl is heading home riding her bike she notices a giant wooden log is blocking the road 42m away. If the friction coefficient between her bike tires and the road is 0.36 and she is driving at 25km/h,then what is the distance required for her to stop given that the total mass of the girl and the bike is 95

Homework Equations


Kinematics and friction coefficient

The Attempt at a Solution


Am totally lost should I find Fk and then find the acceleration and make it negative?
 
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Yes. Do it and post your working if in doubt
 

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