Need Physics Homework Help: Banked Curve Problem with Friction Force"

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SUMMARY

The discussion focuses on solving a physics problem involving a 1300 kg car navigating a banked curve with a radius of 70 m at an angle of 12°. The car's speed is 90 km/h, and the key equation to determine if a friction force is necessary is a = v²/r. The participants emphasize the importance of drawing a free body diagram to visualize the forces acting on the car, particularly the force of friction.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Knowledge of centripetal acceleration (a = v²/r)
  • Familiarity with free body diagrams
  • Basic concepts of friction forces in physics
NEXT STEPS
  • Study the effects of banking angles on vehicle dynamics
  • Learn how to calculate friction forces in circular motion
  • Explore the relationship between speed and radius in banked curves
  • Investigate real-world applications of banked curves in road design
USEFUL FOR

Students studying physics, particularly those tackling problems related to circular motion and forces, as well as educators looking for examples of practical applications of physics concepts.

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Homework Statement



A 1300 kg car rounds a curve of radius 70 m banked at an angle of 12°. If the car is traveling at 90 km/h, will a friction force be required?

Homework Equations


i need help with work


The Attempt at a Solution

 
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start by drawing a free body diagram of the car on the bank, including the force of friction.

[Edit]- Keep in mind that a=v^2/r which will come in handy for this problem. Also remember that your velocity is in km/h
 

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