Find the Solve the Problem with Force!

  • Thread starter Thread starter cool2think
  • Start date Start date
  • Tags Tags
    Force
Click For Summary

Homework Help Overview

The discussion revolves around a physics problem involving a box weighing 200 N that is being moved along a rough track. The problem requires finding the work done by a force acting on the box at an angle with respect to the horizontal, while considering the coefficient of friction.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the relationship between force, displacement, and the angle of application. There are questions about the angle's significance and the type of friction involved, with some suggesting that the coefficient of friction might be kinetic or static.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the problem. Some have provided insights into the calculations involved, while others express uncertainty about the angle and the type of friction, indicating that these factors are crucial for solving the problem.

Contextual Notes

There is a lack of information regarding the angle of the applied force, which is essential for determining the work done. Additionally, the distinction between kinetic and static friction is under consideration, which affects the approach to the problem.

cool2think
Messages
2
Reaction score
0
Answer Problem!

A BOX WEIGHIN 200N IS 2 B SLID SLOWLTHROUGH 20 M ON A ROUGH STRAIGHT TRACKFRICTION COEFF=O.2I have 2 FIND THE WORK DONE BY THE FORCE ACTIN ON THE BOX!IF THE FORCE ACTS AT AN ANGLE 'A'WITH THE HORIZONTAL!
I CANT GET THE ANSWER!
 
Physics news on Phys.org
Please tell us your thoughts on the problem, and what you have come up with so far.

- Warren
 
W = Fd

The force must be parallel with the displacement! F is not the total force applied to the box. F is actually the force applied * cos([tex]\theta[/tex]).
 
Last edited:
ok... unless u know the angle A i doubt this problem can be solved... most prolly the coef. of friction is coef. of kinetic friction... so then the force of friction is (coef.)*mass*g and so the work done by it is distance*force of friction (jsut as shawn said). But if the coef. of friction is static friction, then this problem can't be solved. coz the work done by friction cud be 0 if the applied force is insufficient to move the block
 

Similar threads

Replies
7
Views
2K
Replies
2
Views
2K
Replies
7
Views
2K
Replies
26
Views
5K
  • · Replies 14 ·
Replies
14
Views
1K
  • · Replies 42 ·
2
Replies
42
Views
5K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 17 ·
Replies
17
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K