This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A roadway is designed for traffic moving at a speed of 94 m/s. A curved section of the roadway is a ... (Read 328 times)

laurencescou

  • Hero Member
  • *****
  • Posts: 593
on: Jul 29, 2018
A roadway is designed for traffic moving at a speed of 94 m/s. A curved section of the roadway is a circular arc of 740 m radius. The curved section is temporarily replaced with an unbanked roadway of the same radius.
 
  The coefficient of friction of this roadway is 0.40. The maximum safe driving speed for this unbanked, curved section is closest to: A) 54 m/s
  B) 52 m/s
  C) 50 m/s
  D) 48 m/s
  E) 46 m/s

Question 2

A car heading north collides at an intersection with a truck of the same mass as the car heading east. If they lock together and travel at 28 m/s at 46 north of east just after the collision,
 
  how fast was the car initially traveling? Assume that any other unbalanced forces are negligible.
  A) 40 m/s B) 80 m/s C) 30 m/s D) 20 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ju

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

A


laurencescou

  • Member
  • Posts: 593
Reply 2 on: Jul 29, 2018
Gracias!

tranoy

  • Member
  • Posts: 344
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

The rapid speed of cAMP production The rapid speed of cAMP production
These adolescents have just graduated and look forward to moving on from high school and adolesence These adolescents have just graduated and look forward to moving on from high school and adolesence
The vulva, sagittal section illustrating how the labia majora and labia minora cover and protect the The vulva, sagittal section illustrating how the labia majora and labia minora cover and protect the
A diagrammatic section through a typical adult tooth. A diagrammatic section through a typical adult tooth.
Sagittal section of the female pelvis, showing organs of the reproductive system. Sagittal section of the female pelvis, showing organs of the reproductive system.
Transverse section of midbrain Transverse section of midbrain
Video: Brain Anatomy Animation (Part 1 of 2)

For a complete list of videos, visit our video library