What are the weight and normal force of a stationary car on a sloped road?

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Homework Help Overview

The discussion revolves around a stationary car on a sloped road, specifically analyzing the weight and normal force acting on the car. The scenario involves a car with a known frictional force acting against gravity on a slope of 30 degrees.

Discussion Character

  • Exploratory, Problem interpretation, Assumption checking

Approaches and Questions Raised

  • Participants discuss the need to create a vector diagram to visualize the forces acting on the car, particularly the placement of the frictional force in relation to the slope.

Discussion Status

Some participants are seeking clarification on how to properly represent the forces in a vector diagram, indicating that they are engaged in exploring the problem setup. There is an emphasis on the need for participants to demonstrate their understanding and efforts in the discussion.

Contextual Notes

Participants are reminded that they need to provide evidence of their work, suggesting that there may be specific homework guidelines in place regarding the level of detail expected in their contributions.

whkoh
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A stationary car of weight W on a road sloping at 30 degrees to the horizontal. The frictional force on the car is 4000 N acting up the road BC.

http://img156.exs.cx/img156/5915/phy6dj.png

What is
(a) the weight W
(b) the normal contact force R of the road surface on the car?
 
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What exactly are you stuck on? You're going to need to show evidence of having done stuff, as people aren't going to do your homework for you!
 
Well...the first part. I can't get the vector diagram right. Where do I put 4000 N to start with?
 
Draw your picture with the road sloping down to the right, say. Then the frictional force points back up the road, up and to the left.
 

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