Question: A typical automobile has a maximum deceleration of about 7 m/s 2 ; the typical reaction time to engage the brakes is 0.50 s. A

A typical automobile has a maximum deceleration of about 7 m/s²; the typical reaction time to engage the brakes is 0.50 s. A school board sets the speed limit in a school zone to meet the condition that all cars should be able to stop in a distance of 4 m.

(a) What maximum speed should be allowed for a typical automobile

(b) What fraction of the 4 m is due to the reaction time?

Step by Step Solution

★★★★★

3.32 Rating (158 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a The total distance as the sum of distance x 1 050v 0 x 2 ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

10-P-M-1D (390).docx

120 KBs Word File

Students Have Also Explored These Related Mechanics Questions!

A highway construction zone has a posted speed limit of 40 miles per hour. Workers working at the site claim that the mean speed of vehicles passing through this construction zone is at least 50...

The speed limit in a school zone is 40 km/h (about 25 mi/h). A driver traveling at this speed sees a child run onto the road 13 m ahead of his car. He applies the brakes, and the car decelerates at a...

A police department has set up a speed enforcement zone on a straight length of highway. A patrol car is parked parallel to the zone, 200feet from one end and 150feet from the other end (see figure)....

For the following problems, I will be grading that you have followed the problem solving steps we learned in class... Please complete your work by hand (not typed). 2. A driver has a reaction time of...

Hi. I need Chapter 11 part 1-4 Let me know. Thanks! (it wont letme add more than $8, but I will give $12+ tip) Personal Finance, Fifth Edition by Jeff Madura BUILDING YOUR OWN FINANCIAL PLAN WORKBOOK...

I need Chapter 2 & 3 finished. Chapter 4 & 5, Chapter 6 & 7, & Chapter 8. Some of this is completed, but it isn't 100% finished. Let me know if you can get to it. Personal Finance, Fifth Edition by...

1.) Convert 9 cm ms to meters per second. 2.) Convert 9 7 to miles per hour. 3.) Examine the figure below and answer the following questions. a.) If the graph below represents the position time graph...

Volkswagen shocked the world on September 18, 2015 with its response to the U.S. Environmental Protection Agency's (EPA) notice that Volkswagen's "clean diesel" vehicles were found to be in violation...

Final_Exam_Macro Question 1 (2 points) Purchasing-power panty theory does not hold at all times because many goods are not easily transported and the same goods produced in different countries may be...

Students will find the York City Case Study provided for review. There is a maximum of three pages in this work. All ethical decisions affect others (by definition) and, as Aristotle points out,...

Consider a resistor with length L, uniform cross-sectional area A, and uniform resistivity p that is carrying a current with uniform current density J. Use Eq. (25.18) to find the electrical power...

Cynthia King is a grade 12 high school student in Muskoka, Ontario. She has worked very hard in school this past year and was delighted in March to find out that she was accepted to her first choice...

Explain why differential tax rates may be a good reason for leasing.

Before going in for his annual physical, a 70.0-kg man whose body temperature is 37.0C consumes an entire 0.355-L can of a soft drink (mostly water) at 12.0C. (a) What will his body temperature be...

A large storage tank, open at the top and filled with water, develops a small hole in its side at a point 16.0 m below the water level. If the rate of flow from the leak is equal to 2.50 X 103m3/min,...

A Styrofoam slab has thickness h and density ps. When a swimmer of mass m is resting on it, the slab floats in fresh water with its top at the same level as the water surface. Find the area of the...

To an order of magnitude, how many helium-filled toy balloons would be required to lift you? Because helium is an irreplaceable resource, develop a theoretical answer rather than an experimental...

A legendary Dutch boy saved Holland by plugging a hole in a dike with his finger, which is 1.20 cm in diameter. If the hole was 2.00m below the surface of the North Sea (density 1 030 kg/m3), (a)...

3, 8 Celine is going to be subject to the AMT in 2017. She owns an investment building and is considering disposing of it and investing in other realty. Based on an appraisal of the buildings value,...

Continue the analysis of Problem 60 in Chapter 19. Following a collision between a large spacecraft and an asteroid, a copper disk of radius 28.0 m and thickness 1.20 m, at a temperature of 850C, is...

A 670-kg meteorite happens to be composed of aluminum. When it is far from the Earth, its temperature is -15C and it moves with a speed of 14.0 km/s relative to the Earth. As it crashes into the...

An iron plate is held against an iron wheel so that a kinetic friction force of 50.0 N acts between the two pieces of metal. The relative speed at which the two surfaces slide over each other is 40.0...

QUESTION 16 The area under the standard normal curve to the right of z equals Q, where Q is a number between 0 and 1. What is the area to the right of -z? O 1-Q OQ OQ O Q-0.5

critical values Problem Set 4.8: Critical Values Criterion: Explain changes in critical value based on calculations. Instructions: Read the following and answer the questions. The chi-square table....

a. The cost of a new automobile is $10,000. If the interest rate is 5%, how much would you have to set aside now to provide this sum in five years? b. You have to pay $12,000 a year in school fees at...