How Can I Find the Coefficient of Friction for an Object Sliding Down a Ramp?

Click For Summary

Homework Help Overview

The discussion revolves around a physics problem involving an object sliding down a ramp, specifically focusing on determining the coefficient of friction, acceleration, final velocity, and time taken to slide down the ramp. The problem is set in the context of forces acting on the object and kinematic equations.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants explore the relationship between forces acting on the object and the coefficient of friction, questioning the sufficiency of the provided information to solve the problem. There is a discussion about Newton's second law and kinematics equations, with some participants expressing uncertainty about the problem's setup.

Discussion Status

The discussion is ongoing, with participants attempting to clarify the requirements for solving the problem. Some guidance has been offered regarding the need for additional information to determine the coefficient of friction, and there is acknowledgment of the potential for the problem to be unsolvable as presented.

Contextual Notes

Participants note that the problem may lack critical information necessary for a complete analysis, particularly regarding the coefficient of friction, which is essential for solving the subsequent questions posed in the homework.

adc1122
Messages
5
Reaction score
0

Homework Statement


A 50.2 kg object begins to slide down a 32 degree ramp. What is the coefficient of friction for this ramp? What is the objects acceleration down the ramp? If the object is 2.51m from the bottom of the ramp, what will be its final velocity? How long does it take for the object to slide down the ramp?


Homework Equations


What are the steps and formulas to get to the answers?
I know sin cos and tan theorums.


The Attempt at a Solution

 
Physics news on Phys.org
Try looking up Newton's second law as well as some of the kinematics equations.
However, the question doesn't make sense. It's impossible to figure out the coefficient of friction with the information given. Without the coefficient, answering the rest of the questions is impossible. Are you sure you copied the question correctly?
 
Yes, I'm sure. I am pretty sure that the downward force is 261N. This is because the sin(32) multiplied by the force of gravity 9.80m/s squared is such. Does that help?
 
That's the force along the ramp, yes. However, without the coefficient of friction, you can't do anything. If the friction is barely measurable, that's obviously going to give you a different answer than if the friction was almost as strong as gravity.
 
Okay. What other things would i need to find the coefficient of friction? I might have something. Thanks a lot!
 
If you know the acceleration of the object, you can deduce from that the coefficient of friction.

Can you post the problem word for word? Don't leave out anything, even if you think it's not important.
 
Sadly, that is the problem word for word. My physics teacher just wrote the problem on the board for homework.
 
That makes the problem unsolvable, then. You can safely move on (and perhaps tell the teacher about the missing info).
 
Alright. You said I could deduce to find the coefficient of friction. How would i do so?
 

Similar threads

Replies
18
Views
3K
  • · Replies 4 ·
Replies
4
Views
3K
Replies
6
Views
2K
  • · Replies 32 ·
2
Replies
32
Views
4K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 16 ·
Replies
16
Views
3K
  • · Replies 11 ·
Replies
11
Views
4K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
Replies
18
Views
3K