Coefficient of Friction of a baseball player

In summary, the conversation is about finding the distance a baseball player slides before coming to rest on third base with an initial speed of 8.35 m/s and a coefficient of kinetic friction of 0.36. The participants discuss using Newton's second law and kinematic equations to solve the problem, with one individual providing guidance on using the weight of the player in the calculations. Eventually, the individual asking the question is able to solve the problem with the help of the others.
  • #1
wind522
5
0
Question:
A baseball player slides into third base with an initial speed of 8.35 m/s. If the coefficient of kinetic friction between the player and the ground is 0.36, how far does the player slide before coming to rest?

How would I start this problem?? I would use Ff=uFn but it doesn't even give the weight of the player..
And would I have to use one of the kinematics problems to find the distance? If so, how would I find acceleration or final velocity?
 
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  • #2
wind522 said:
Question:
A baseball player slides into third base with an initial speed of 8.35 m/s. If the coefficient of kinetic friction between the player and the ground is 0.36, how far does the player slide before coming to rest?

How would I start this problem?? I would use Ff=uFn but it doesn't even give the weight of the player..
And would I have to use one of the kinematics problems to find the distance? If so, how would I find acceleration or final velocity?
Perhaps you don't need the mass, try using Newton's second law and see what happens :wink:. And yes, kinematic equations (after using Newton's second law) sounds like a good idea.
 
  • #3
In other words, just write "mg" for the weight of the player and hope the "m" cancels out!
 
  • #4
How could I use Newton's second law of motion without knowing what any of the variables stand for?
 
  • #5
wind522 said:
How could I use Newton's second law of motion without knowing what any of the variables stand for?
I'm sure you do know what the variables stand for. Start by writing out Newton's second law and filling in any information that you know.
 
  • #6
I got it! Thank you guys so much for helping! :biggrin:
 
  • #7
wind522 said:
I got it! Thank you guys so much for helping! :biggrin:
No problem, we didn't really do much anyway!
 

1. What is the coefficient of friction of a baseball player?

The coefficient of friction of a baseball player refers to the measure of the amount of friction between the player's shoe and the surface of the playing field. It is a dimensionless quantity that represents the ratio of the force required to move the player's shoe horizontally over the field to the force pressing the shoe against the field.

2. Why is the coefficient of friction important for baseball players?

The coefficient of friction is important for baseball players because it affects their ability to run, stop, and change direction on the playing field. A higher coefficient of friction can provide better traction, allowing players to move more quickly and efficiently. It also helps prevent slipping and sliding, reducing the risk of injury.

3. How is the coefficient of friction measured for a baseball player?

The coefficient of friction for a baseball player is typically measured using a device called a tribometer. This device measures the force required to move a player's shoe horizontally across a surface while measuring the downward force on the shoe. The coefficient of friction is then calculated using these measurements.

4. What factors can affect the coefficient of friction for a baseball player?

The coefficient of friction for a baseball player can be affected by several factors, including the type of playing surface, the type of shoe worn, and the condition of the playing field. Other factors that can influence the coefficient of friction include the player's weight, running speed, and the angle at which they are moving.

5. How can a baseball player improve their coefficient of friction?

A baseball player can improve their coefficient of friction by wearing shoes with proper cleats for the playing surface and keeping them clean and in good condition. Players can also use traction-enhancing products, such as rosin bags, to improve their grip on the field. Additionally, proper training and technique can help players maintain balance and control, leading to better traction and a higher coefficient of friction.

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