Acceleration on a ramp with coefficient of friction

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Homework Help Overview

The discussion revolves around calculating the acceleration of a block sliding down a ramp, incorporating the effects of friction. The scenario involves a 25kg block on a 30-degree incline with a coefficient of friction of 0.3.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the importance of free body diagrams and the application of forces, particularly the force of friction. There are questions about how to properly incorporate the coefficient of friction into the calculations.

Discussion Status

Some participants have expressed uncertainty about applying the coefficient of friction in their calculations. While one participant indicated they resolved their confusion, others are still exploring the necessary steps to incorporate friction into their analysis.

Contextual Notes

There are indications that some participants may have initially overlooked the role of friction in their calculations. The discussion reflects a learning process where assumptions and methods are being examined.

reganw
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What is the acceleration of a 25kg block sliding down a ramp at 30 degrees to the horizontal, if the coefficient of friction is 0.3?

ans= 2.4m/s2


I haven't done this in a while.. I can't remember how to apply the coefficient of friction..

Thank you!

PLEASE DISREGARD.. I've figured it out now
 
Last edited:
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Did you make a free body diagram? Choose your axes along the incline and perpendicular to it. The forced perpendicular must balance.

The force of friction = the coefficient of friction times the normal force.
 
Berko said:
Did you make a free body diagram? Choose your axes along the incline and perpendicular to it. The forced perpendicular must balance.

The force of friction = the coefficient of friction times the normal force.

I did make the free body diagram.. but I get to the end and find the acceleration and still haven't applied the coefficient of friction because I haven't used the equation for Force of friction..
 
Nevermind, I've figured it out now.. thank you
 
Last edited:

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