Solving Physics Homework: Frictional Force & Speed of Baseball Player

  • Thread starter Thread starter jess_08
  • Start date Start date
  • Tags Tags
    Physics
AI Thread Summary
The discussion focuses on solving a physics homework problem involving a baseball player sliding into home base. The player has a mass of 80.0 kg and a coefficient of kinetic friction of 0.610, leading to a calculated frictional force of approximately 478.725 N. Participants express confusion about how to approach the problem, particularly in drawing the free body diagram and determining the average force to find acceleration. The conversation highlights the need for clarity in applying physics equations and understanding the relationship between friction and motion. Overall, the thread emphasizes the importance of breaking down the problem into manageable steps.
jess_08
Messages
4
Reaction score
0

Homework Statement



A baseball player of mass 80.0 kg slides into home base. The coefficient of kinetic friction between the player and the ground is 0.610.
a.) What is the magnitude of the frictional force? (In solving this part of the question draw a free body diagram with all of the forces labelled. Use a rectangle to represent the baseball player. Also, assume the player is moving to the right while sliding.)
b.) If the player comes to rest after 1.5 s, what must have been the initial speed of the player?

Homework Equations




The Attempt at a Solution

 
Physics news on Phys.org
can you show your work? where are you getting stuck?
 
i don't even know where to start... like what do i do?
 
Fn
|
<-- Ff (0.610)RECTANGLE(80.0kg)----> Fa(his sliding)
|
Fg

Fk=mue Fn
Fk=(0.610)mg
Fk=(0.610)(80)(9.81)
=478.725N

ahha i honestly made up that answer for part a... but the FBD is right (:
 
k i understand that equation but how do i find the average force to find the acceleration in part b?
 
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »
Thread 'Correct statement about a reservoir with an outlet pipe'

Thread 'Correct statement about a reservoir with an outlet pipe'

The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
View full post »

Similar threads

Calculating Kinetic Friction Coefficient for Sliding Soccer Player
Replies
13
Views
2K
Calculating Distance Slid on Ground with Friction | Baseball Player Example
Replies
9
Views
3K
Finding velocity upon collision
Replies
12
Views
2K
Magnitude of velocity and impulse
Replies
5
Views
1K
Kinematics / Forces Friction Problem?
Replies
2
Views
2K
Finding the Work Done by Friction w/out Friction
Replies
4
Views
1K
Help with homework (kinetic friction)
Replies
1
Views
1K
Nonconservative collision - Work
Replies
3
Views
2K
Solving Baseballs Colliding with a Car: Find Speed & Position
Replies
5
Views
2K
Coefficient of Friction of a baseball player
Replies
6
Views
9K

Hot Threads

Recent Insights

Back
Top