Bicycle Distance: Kinematics & Friction Coefficient

  • Thread starter Thread starter vinamas
  • Start date Start date
  • Tags Tags
    Bicycle
AI Thread Summary
To determine the stopping distance for a girl riding her bike at 25 km/h with a friction coefficient of 0.36, the first step is to calculate the kinetic friction force (Fk) using the mass of the girl and the bike, which totals 95 kg. This force will allow for the calculation of the negative acceleration needed to stop the bike. The stopping distance can then be found using kinematic equations that relate initial velocity, acceleration, and distance. It's important to show all calculations for clarity and to ensure understanding of the concepts involved. Properly applying these principles will yield the required stopping distance.
vinamas
Messages
43
Reaction score
1

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?
 
Physics news on Phys.org
Yes. Do it and post your working if in doubt
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »

Similar threads

Calculating Force: Bicycle & Block Mass, Friction Coefficients
Replies
7
Views
2K
Acceleration of the object, distance, kinematic coefficient
Replies
2
Views
1K
Solving Simple Uniform Motion Problem: Marlene's Bicycle Ride to Jon's House
Replies
2
Views
2K
Rolling Friction of Bicycle Tires
Replies
1
Views
3K
Coefficient of Kinetic Friction and Variables
Replies
2
Views
2K
Maximizing Acceleration and Braking Distance for a Cyclist on a Horizontal Road
Replies
10
Views
4K
Solve for friction coefficient of block on sp
Replies
1
Views
836
Finding friction force *without* mass or coefficient
Replies
7
Views
7K
How Much Stopping Distance Does Sally Need on Her Bicycle?
Replies
10
Views
7K
Coefficient of Friction between slide/girl
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top