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
lbvjy [14]
3 years ago
8

A Chevrolet Corvette convertible can brake to a stop from a speed of 60.0 mi/h in a distance of 123 ft on a level roadway. What

is its stopping distance on a roadway sloping downward at an angle of 26.0°?
Physics
1 answer:
Digiron [165]3 years ago
6 0

Answer:

83.1946504051 m

Explanation:

u = Initial velocity = 60\ mph=\dfrac{60\times 1609.34}{3600}=26.82233\ m/s

s = Displacement = 123\ ft=\dfrac{123}{3.281}=37.4885705578\ m

\theta = Angle = 26^{\circ}

v^2-u^2=2as\\\Rightarrow a=\dfrac{v^2-u^2}{2s}\\\Rightarrow a=\dfrac{0^2-26.82233^2}{2\times 37.4885705578}\\\Rightarrow a=-9.5954230306\ m/s^2

Coefficient of friction

\mu=-\dfrac{a}{g}\\\Rightarrow \mu=\dfrac{9.5954230306}{9.81}\\\Rightarrow \mu=0.978126710561

mg sin\theta - u mg cos\theta = ma\\\Rightarrow a=9.81(sin26-0.978126710561cos26)\\\Rightarrow a=-4.32382\ m/s^2

v^2-u^2=2as\\\Rightarrow s=\dfrac{v^2-u^2}{2a}\\\Rightarrow s=\dfrac{0^2-26.82233^2}{2\times -4.32382}\\\Rightarrow s=83.1946504051\ m

The stopping distance is 83.1946504051 m

You might be interested in
What momentum of a 50kilogram ice skater gliding across the ice at a speed of 5m/s?
Ivenika [448]
Momentum (P) = Mass (kg) * Velocity (m/s)

P = M * V
P = 50 * 5
P = 250

So momentum is 250 kgm/s

5 0
3 years ago
Read 2 more answers
The first five questions refer to the following problem:
Kruka [31]

Answer:

<h2>Δd=d2−d1</h2>

Explanation:

<h2>good morning</h2>
8 0
3 years ago
I will mark either the best or the first as brainliest.
tankabanditka [31]
The answer to your question is C

Because it goes from point A to point C to make one wavelenght
3 0
3 years ago
Which resistors in the circuit are connected in series?
skad [1K]

Answer:

b and c

Explanation:

you had it correct :)

7 0
3 years ago
Read 2 more answers
the atomic weight of antimony is 121.76 amu. two naturally occurring isotopes of antimony. 121-Sb has an isotopic mass of 120.90
liubo4ka [24]
Isotope has 57.40% abundance
the other one 100% - 57.40% = 42.60%

mass of 121 (% abundance) + mass of 123 (% abundance) =  total mass (atomic weight)
(120.9038 amu)(0.5740) + (x amu)(0.426) = 121.76 amu
x = 122.9136

hope this help
6 0
3 years ago
Other questions:
  • A metal object is four feet away from a magnet. If you move the object two feet closer toward the
    8·1 answer
  • PHYSICS QUESTION!!!!
    14·1 answer
  • If one's hands are being warmed by holding them to one side of a flame, the predominant form of heat transfer is what process?
    11·1 answer
  • The particles of a GAS within a closed container will collide with the container walls, exerting a FORCE. The force per unit of
    5·2 answers
  • A wrecking ball is suspended by two cables as shown below. If the tension in cable 2 is 12 000 N, what is the weight of the wrec
    12·1 answer
  • Which statement correctly summarizes Wegener’s theory of continental drift?
    6·2 answers
  • A woman holds a frozen smoothie in her hand on a warm
    15·2 answers
  • What 3 things use electromagnetic energy in nature?​
    12·1 answer
  • Easy point...
    12·2 answers
  • A 0. 060-kg tennis ball, moving with a speed of 5. 82 m/s , has a head-on collision with a 0. 090-kg ball initially moving in th
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!