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

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A 1300 kg car is navigating a banked curve with a radius of 70 m at a speed of 90 km/h and an angle of 12°. To determine if a friction force is necessary, a free body diagram should be drawn to analyze the forces acting on the car. The equation a = v²/r is relevant for calculating the required centripetal acceleration. The conversion of velocity from km/h to m/s is also crucial for accurate calculations. Understanding these principles will help solve the problem effectively.
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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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