Bicycle Distance: Kinematics & Friction Coefficient

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In summary, a girl riding her bike at 25km/h notices a giant wooden log blocking the road 42m away. The friction coefficient between her bike tires and the road is 0.36 and the total mass of the girl and bike is 95. To find the stopping distance, the girl should first find the friction force and then determine the acceleration, making it negative.
  • #1
vinamas
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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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  • #2
Yes. Do it and post your working if in doubt
 

FAQ: Bicycle Distance: Kinematics & Friction Coefficient

1. What is bicycle distance?

Bicycle distance refers to the total distance traveled by a bicycle over a certain period of time. It is a measure of how far a bicycle has traveled from its starting point.

2. What is kinematics in relation to bicycle distance?

Kinematics is a branch of physics that studies the motion of objects without considering the forces that cause the motion. In relation to bicycle distance, kinematics refers to the study of the movement of a bicycle and its parts as it travels a certain distance.

3. How does friction coefficient affect bicycle distance?

The friction coefficient is a measure of the amount of friction between two surfaces. In relation to bicycle distance, a higher friction coefficient means that there is more resistance between the bicycle tires and the ground, making it more difficult for the bicycle to travel a certain distance. A lower friction coefficient, on the other hand, means less resistance and the bicycle can cover a larger distance with less effort.

4. What factors affect bicycle distance?

There are several factors that can affect bicycle distance, including the terrain (flat or hilly), the weight of the rider and the bicycle, the condition and type of the bicycle's tires, the wind speed and direction, and the friction coefficient between the tires and the ground.

5. How can the friction coefficient be measured for a bicycle?

The friction coefficient between a bicycle's tires and the ground can be measured using a device called a dynamometer. This device measures the force required to move the bicycle's tires over a surface at a constant speed. The ratio of this force to the weight of the bicycle and rider is the friction coefficient. It can also be estimated by conducting experiments on different surfaces and recording the distance traveled by the bicycle under the same conditions.

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