Formulas needed for a dynamic problem

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    Dynamic Formulas
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SUMMARY

The discussion centers on solving a dynamic physics problem involving a car on an arched bridge, specifically calculating the maximum force exerted by the car in two scenarios: when the bridge arches up and when it arches down. Key equations include the gravitational force (F = mg) and centripetal force (F = mv²/R), which are essential for determining the forces acting on the car. Participants clarify the relationship between centripetal force and the car's ability to remain on the bridge, emphasizing that insufficient centripetal force leads to the car veering off track. The conversation also touches on concepts such as position vectors and angular velocity.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with centripetal force and its calculations
  • Knowledge of position vectors and their significance in physics
  • Basic grasp of angular velocity and its measurement
NEXT STEPS
  • Study the derivation of centripetal force equations in circular motion
  • Explore the concept of angular velocity and its applications in dynamics
  • Learn about free body diagrams (FBD) and their role in analyzing forces
  • Investigate the effects of varying speeds on centripetal force and stability
USEFUL FOR

Students in physics, particularly those studying dynamics and circular motion, as well as educators seeking to enhance their teaching of these concepts.

  • #31
Ah, but they appear to have defined the car at the center of the bridge according to the diagram (the question only says that the car is on the bridge, not where). Hmm.

Are you getting smart with me? ;)
 
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  • #32
Femme_physics said:
Ah, but they appear to have defined the car at the center of the bridge according to the diagram (the question only says that the car is on the bridge, not where). Hmm.

Are you getting smart with me? ;)

Yes. Very suggestive to draw the car in the middle of the bridge. :smile:

Let me ask you this then.
Suppose you're building bridges and want to know whether your cartoon man will be able to cross the bridge without it collapsing.
Do you think it only matters what the max force is in the middle of the bridge? :smile:
 
  • #33
Alright, fine, so I killed 500 cartoon men to date! I said I'm sorry to their families! Stop alluding to my negligence!

http://www.ludoflash.com/wp-content/thumbs/cargo-bridge_v3_img4.jpg




//
But yea, I do realize stress is not only important when the cartoon man/car/elephant is at the middle :) thanks.
 
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  • #34
Femme_physics said:
Alright, fine, so I killed 500 cartoon men to date! I said I'm sorry to their families! Stop alluding to my negligence!

//
But yea, I do realize stress is not only important when the cartoon man/car/elephant is at the middle :) thanks.

Bwahaha! :smile:

To be fair, I think the person who stated the problem didn't expect you to go that far either.
 

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