anonymous
  • anonymous
A 600-kg car is going over a curve with a radius of 120 meters that is banked at an angle of 25 degrees with a speed of 30 meters per second. The coefficient of static friction between the car and the road is 0.3. What is the normal force exerted by the road on the car? a) 7240 N b) 1590 N c) 5330 N d) 3430 N e) 3620 N
MIT 8.01 Physics I Classical Mechanics, Fall 1999
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Vincent-Lyon.Fr
  • Vincent-Lyon.Fr
First thing to do is draw a free-body diagram of the situation.
anonymous
  • anonymous
you can use the formula tan (theta) = v²/gR where theta is your angle, v is your velocity, g the acceleration due to gravity and R your radius
Vincent-Lyon.Fr
  • Vincent-Lyon.Fr
This formula will give you the velocity for which friction is zero, but it will not provide an answer to the question.

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More answers

anonymous
  • anonymous
Ny=P=mg;
anonymous
  • anonymous
What´s is the value for G force?
anonymous
  • anonymous
Try to use the Diagram for solve the problem.
anonymous
  • anonymous
Here is the answer.
anonymous
  • anonymous
Here is the solution:
1 Attachment
Vincent-Lyon.Fr
  • Vincent-Lyon.Fr
@Dikawar You went right, but it is even easier to project along the normal of the road: - only one projection needed - no system to solve for N, as f does not appear in the equation.
Vincent-Lyon.Fr
  • Vincent-Lyon.Fr
Vincent-Lyon.Fr
  • Vincent-Lyon.Fr
*sorry @Diwakar
anonymous
  • anonymous
@Vincent-Lyon.Fr Thanks! Your method is much better and easier .

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