Calculating Frictional Force on a Moving Car on a Slope

AI Thread Summary
To calculate the frictional force on a 2,254-kg car moving down a 10-degree slope with an acceleration of 1.1 m/s², the equation μ=ax/gcos-gsin is used. The calculated coefficient of friction (μ) is approximately 0.138. A request for clarification on the free body diagram indicates the importance of visualizing forces acting on the car. The discussion emphasizes the need for detailed problem-solving steps to ensure accurate calculations. Understanding the direction and magnitude of the frictional force is crucial for solving the problem effectively.
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Homework Statement


A 2,254-kg car is moving down a road with a slope of 10 degrees while speeding up at a rate of 1.1 m/s^2. What is the direction and magnitude of the frictional force?
(define positive in the forward direction, i.e., down the slope)?


Homework Equations


ax=μgcos-gsin


The Attempt at a Solution


μ=ax/gcos-gsin 1.1m/9.81(cos10-sin10)=0.138 i keep on getting this answer.
 
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I think it would be useful if you provided more details about your attempt. For starters, what does the free body diagram look like?
 

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