What is the acceleration of a block being pulled up a slope by a 140 N force?

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Homework Help Overview

The problem involves calculating the acceleration of a 10.0 kg block being pulled up a 35-degree slope by a force of 140 N, with a coefficient of friction of 0.100. The context is rooted in dynamics and frictional forces on inclined planes.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the importance of creating a free-body diagram to visualize the forces acting on the block. There are questions about how to incorporate the coefficient of friction into the calculations and the next steps to determine acceleration.

Discussion Status

The discussion is ongoing, with some participants providing guidance on the necessity of a free-body diagram and the forces involved, including gravity and friction. There is an emphasis on understanding the relationships between these forces and the resultant acceleration.

Contextual Notes

Participants note the need for a clear representation of all forces acting on the block, indicating that visual aids may be crucial for understanding the problem setup. There is also a mention of the challenge in integrating the coefficient of friction into the analysis.

joepro
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Homework Statement


Calculate the acceleration for a 10.0kg block which is being pulled up a 35 degree slope by a force of 140 N if the coefficient of friction is 0.100 The answer is to be in m/s2


Homework Equations


Ff=UN



The Attempt at a Solution



I am having trouble getting started and putting the parts of the problem together.
 
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Start with a picture and free-body diagram.

ehild
 
I have a free body which a 140 N force going along the + x-axis a N force (normal) going + along Y axis a vector "W" in the third quad with a polar angle of 235'. What do i do next. I know that i need to find the acceleration of the block. Where and how does the coeficient of friction come into play here?
 
I still need that picture with all forces shown. There is gravity and friction in addition to that 140 N force. The resultant force accelerates the block.

ehild
 
Last edited:

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