Including force in free body diagram

AI Thread Summary
A discussion on free body diagrams for a car parked on a hill highlights the forces acting on the vehicle. Participants agree that the three main forces are weight (Mg), friction, and the normal force. There is some confusion regarding a potential fourth force, but it is clarified that the car is at rest, implying no additional forces are acting. The consensus is that the three identified forces are sufficient for the diagram. Understanding these forces is crucial for accurately representing the car's state in physics problems.
luca131
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Question
The number of forces acting on a car parked on a hill(with parking brakes engaged) is
Answers
1,2,3,4




When i drew the free body diagram, i got 4 but I am not sure if i should include a force
 
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Which four forces did you get? Which one don't you tihnk you should include?
 
i got Mg(weight),friction,normal force, and do i include force or there isn't one in this problem
 
Your three forces are correct. I'm not sure what you mean by the fourth force. The car is at rest remember!
 
o yea thank you
 

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