Determine distance traveled up an incline w/ friction

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Homework Help Overview

The problem involves a box moving up an inclined track with friction, given an initial speed and specific parameters such as mass and the coefficient of kinetic friction. Participants are exploring how to determine the distance the box travels up the incline.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the need to draw a force diagram and consider the forces acting on the box, including friction and normal force. Questions arise about how to calculate the acceleration and which mass to use in the calculations.

Discussion Status

The discussion is ongoing, with participants providing guidance on the role of friction in deceleration and clarifying the distinction between mass and components of weight. There is no explicit consensus yet, as participants are still exploring different aspects of the problem.

Contextual Notes

Participants mention that there is no answer available for comparison, as the problem is sourced from an online platform. The discussion includes clarifications on the definitions and roles of various forces involved in the scenario.

Cbookman
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Homework Statement



a box given an initial speed of 3.0 m/s up a 19.0° inclined track. The mass of the box is 20 kg, and the coefficient of kinetic friction between sled and incline is 0.20. How far up the incline does the box move?

Homework Equations



F=ma, n=63.8N, mukN=12.76

The Attempt at a Solution



what do i use to find the forward force, and then determine how far it travels?
 
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Did you draw a force diagram? Ff=uFn, Fn is a component of weight. Is there an answer to compare to?
 
i drew the diagram. no answer to compare to, it's on webassign. do i have to determine the acceleration in the opposite direction based on the friction force?
 
Yes. There is friction force and it cause it to decelerate. Ff=ma, try that.
 
do i use the actual mass times the friction force, or the normal force?
 
Come again?
 
Why in the world would you multiply mass times force at all? Force is "kg m/s2". Mass times force would be "kg2 m/s2" and I don't know any quantity that has those units.
 
i understand that, i misspoke. i wanted to know what mass to use, either the given mass, or a component of it to determine the acceleration.
 
Mass is mass. There is no component of mass, just component of weight.
 

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