Calculating Mass and Normal Force of the Most Massive Car Ever Built

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Homework Help Overview

The discussion revolves around a physics problem involving the calculation of mass and normal force for a car moving down a slope. The scenario includes a net force acting on the car and the coefficient of kinetic friction between the tires and the pavement.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the forces present in a free-body diagram and the application of Newton's second law. There is a suggestion to find the mass using the relationship between force and gravitational acceleration.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the problem and clarifying the forces involved. Some guidance has been offered regarding the relationship between force and mass.

Contextual Notes

There is mention of uncertainty regarding the accuracy of the free-body diagram created by the original poster, as well as a lack of familiarity with the relevant equations.

Twilit_Truth
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This is my first time here, so if I put this in the wrong place I am sorry. I will place the entire problem here, exactly as it appears.

The most massive car ever built was the official car of the General Secritary of the Communist Party in the former Soviet Union. Suppose this car is moving down a 10.0 degree slope when the driver suddenly applies the brakes. The net force acting on the car as it stops is -2.00 X 10^4 N. If the coefficient of kinetic friction between the car's tires and the pavement is 0.797, what is the car's mass? What is themagnitude of the normal force that the pavement exerts on the car?


I have no clue as to what equations to use. Sorry.



I made a free-body diagram, but I think I messed it up.

Thank you for your time.
 
Last edited:
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Can you explain all of the forces that are present on your diagram? What's Newton's second law?
 
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Twilit_Truth said:
This is my first time here, so if I put this in the wrong place I am sorry. I will place the entire problem here, exactly as it appears.

The most massive car ever built was the official car of the General Secritary of the Communist Party in the former Soviet Union. Suppose this car is moving down a 10.0 degree slope when the driver suddenly applies the brakes. The net force acting on the car as it stops is -2.00 X 10^4 N. If the coefficient of kinetic friction between the car's tires and the pavement is 0.797, what is the car's mass? What is themagnitude of the normal force that the pavement exerts on the car?


I have no clue as to what equations to use. Sorry.



I made a free-body diagram, but I think I messed it up.

Thank you for your time.

Just asking someone who knows, couldn't you find the mass by doing F/g = mass?
 
You could. Thank you SO much for that comment. Apparently, I'm brain-dead, lol.
 

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