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
USPshnik [31]
3 years ago
13

A 2956 kg car starts from rest at the top of a driveway of length 6 m that is sloped at 35◦ with the horizontal. An average fric

tional force of 3080 N impedes the motion. Find the speed of the car at the bottom of the driveway. The acceleration of gravity is 9.8 m/s 2 . Answer in units of m/s.
Mathematics
1 answer:
zepelin [54]3 years ago
7 0

Answer:

7.41 m/s

Step-by-step explanation:

Force of a car inclined at an angle

F=mg Sin Θ where; m = 2956 kg , g = 9.8m/s² , Θ = 35⁰

F = 2956 x 9.8 x Sin 35 = 16615.82 N

Net force due to friction = 16615.82 - 3080 = 13535.82 N

To calculate acceleration; F= Ma

13535.82 = 2956 x a

a = 4.58 m/s²

From equation of motion

V^{2} = V_{o} ^{2}  + 2aS

V² =  0 + (2 x 4.58 x 6)

V = \sqrt{54.95}

V = 7.41 m/s

You might be interested in
PLEASE SOLVE THESE 3 EASY 6TH GRADE QUESTIONS WILL GIVE BRAINLY
Brrunno [24]

Answer:

3x5

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which system of linear inequalities has the point (2, 1) in its solution set? Which system of linear inequalities has the point
brilliants [131]

Answer:

c

Step-by-step explanation:

c Which system of linear inequalities has the point (2, 1) in its solution set? Which system of linear inequalities has the point (2, 1) in its solution set?

y less-than negative x + 3. y less-than-or-equal-to one-half x + 3 On a coordinate plane, 2 lines are shown. The first solid straight line has a positive slope and goes through (negative 4, 1) and (0, 3). Everything below the line is shaded. The second dashed straight line has a negative slope and goes through (0, 3) and (3, 0). Everything to the left of the line is shaded.

y less-than negative one-half x + 3. y less-than one-half x. On a coordinate plane, 2 lines are shown. The first solid straight line has a negative slope and goes through (0, 3) and (4, 1). Everything below the line is shaded. The second dashed straight line has a positive slope and goes through (0, 0) and (2, 1). Everything below and to the right of the line is shaded.

y less-than-or-equal-to negative x + 3. y less-than-or-equal-to one-half x + 2 On a coordinate plane 2 solid straight lines are shown. The first line has a positive slope and goes through (negative 4, 1) and (0, 3). Everything below the line is shaded. The second line has a negative slope and goes through (0, 3) and (3, 0). Everything below and to the left of the line is shaded.

y less-than one-half x. y less-than-or-equal-to negative one-half x + 2v

7 0
3 years ago
Read 2 more answers
The sum of two numbers is 24 and their quotient is 5 <br> what are the two numbers
ELEN [110]
The numbers are "x" and "y";
Therefore, we can suggest this system of equations:
x+y=24                         ⇒x=24-y
x/y=5

solve this problem by substitution method.
(24-y)/y=5
24-y=5y
-y-5y=-24
-6y=-24
y=-24/-6=4

x=24-y
x=24-4
x=20

Answer: the numer are: 20 and 4

4 0
3 years ago
A straight line on a coordinate plane always represents a function. true or false
julsineya [31]
A straight line on a coordinate plane always represents a function would be true.

7 0
3 years ago
Read 2 more answers
50 points!<br><br> Select the correct answer.<br><br> Which equation has an extraneous solution?
suter [353]

Answer:

C. Square root of x = -5

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Imagine that you have developed a genetic test to detect the dominant allele (A) that cause a rare genetic condition. As with mo
    14·1 answer
  • The graph of f(x)<br> the x-axis<br> at x = -3, 0, and 3.
    5·2 answers
  • What is the surface area of the right rectangular prism? Enter your answer in the box. ft²
    11·1 answer
  • Find the volume of the cylinder i just need the answer please help it’s due in 10 mins
    7·1 answer
  • What is defined using the undefined terms point and line?
    14·1 answer
  • ben owns a older american truck. The odometer shows distance travelled in miles. On a recent trip to deliver produce for his emp
    5·1 answer
  • here is the pic :))))))))))))))))))))))))))))))))))))))))))))))))))) sorry for doing so many smiles it would not let me post thi
    8·2 answers
  • A piece of wire 6 cm long weighs 30 grams. What is the weight of an 8 m length of the same wire?
    9·1 answer
  • RESTAURANTS In 2012, a popular pizza franchise had 2483 restaurants. In 2017, there were 2606 franchised
    5·1 answer
  • Write the numerical expression 34 in expanded form.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!