1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kari74 [83]
2 years ago
8

The four values of f correspond to the coefficient of friction for four road and tire conditions: an icy road, a very good road

with great tires, an asphalt road with fair tires, and a wet road with fair tires. Match the coefficients of friction to the appropriate conditions by looking at the braking distance required.
Mathematics
1 answer:
devlian [24]2 years ago
8 0

Answer:

The four values of f are given in part a of the question as

f= 0.30, 0.50, 0.70, 0.90

The answers to the question are

i. icy road, f = 0.3

ii. Very good road with great tires, f = 0.9

iii. Asphalt road with fair tires, f = 0.7

iv. Wet road with fair tires, f = 0.5  

Step-by-step explanation:

The braking distance is given by

d = \frac{v^2}{2g(f+G)} Where

d = Braking distance

f = Coefficient of friction

G = Constant = Grade of the road and

g = Acceleration due to gravity = 32.19 ft/s²

Where  v = 60 mph we have

d = \frac{7744}{64.4f+0.02} ft

Therefore for

f = 0.3,  d = 400.41 ft

f = 0.5,  d = 240.35 ft

f = 0.7,  d = 171.71 ft

f = 0.9,  d = 133.56 ft

From the breaking distance required we have

i. icy road, f = 0.3

ii. Very good road with great tires, f = 0.9

iii. Asphalt road with fair tires, f = 0.7

iv. Wet road with fair tires, f = 0.5  

You might be interested in
Which number line model represents the expression-1 1/2 + 1 1/2
Luba_88 [7]

Answer:

I can't see the other answers, but find the one that goes to 3. It will look like C, but only arrows going up.

Step-by-step explanation:

1 + 1 = 2

1/2 + 1/2 = 1

2 + 1 = 3

7 0
2 years ago
(-0.3) ÷ (-0.2)+(-2.56)<br><br><br> In whole numbers with steps please
Valentin [98]

Answer:

-1 to the nearest whole number.

Step-by-step explanation:

(-0.3) ÷ (-0.2)+(-2.56)

Order of operations - the division is done first:

= 1.5 = (-2.56)

= 1.5 - 2.56

= -1.06.

6 0
3 years ago
How many lines of symmetry, if any, exist for trapezoid ABCD?
galben [10]
I think the answer is 1 but I can’t see the picture
8 0
3 years ago
Read 2 more answers
Indigo Depot is having a clearance sale of their fall items. A jacket that originally cost $120 before any discount is on sale f
Sauron [17]

Answer:

The final price is $66.

Step-by-step explanation:

This question can be solved by a rule of three.

The initial price was of $120.

Initially, there was a discount of 15%. Then, there is another discount on the initial price. So the total discount is of 15+30 = 45%.

So the final price will be 100-45 = 55% = 0.55 of the initial price.

So

$120 - 1

x - 0.55

x = 0.55*120 = 66

The final price is $66.

5 0
3 years ago
Someone please show me how to find B, thanks.
liq [111]
Hello,

Answer B.

Using Thales, 6/9=B/8==>B=48/9=5+1/3.
8 0
2 years ago
Read 2 more answers
Other questions:
  • Pablo ran a concession stand last Saturday and made $79.80 from selling a total of 53 hot dogs and hamburgers. Each hot dog sold
    12·1 answer
  • Simplify The Algebraic Expression
    15·1 answer
  • Find the value of the expression.<br> b2 − a <br> for a = 4 and b = 5
    11·2 answers
  • Wat is 1/2 of 1 litre​
    13·2 answers
  • Write the sum of the numbers as the product of their GCF and another sum
    7·2 answers
  • Listed below are student evaluation ratings of​ courses, where a rating of 5 is for​ "excellent." The ratings were obtained at o
    9·2 answers
  • Round 1.82 to the nearest whole number​
    10·2 answers
  • Noah saw some worms in his garden. He measured the length of each worm.
    8·1 answer
  • Graph the image of triangle PQR after a reflection across the line y = 2​
    9·1 answer
  • Which of the following statements about least squares regression analysis is true?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!