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
nadya68 [22]
2 years ago
8

A drag racer starts her car from rest and accelerates at 5.5 m/s2 for the entire distance of 523 m. How long did it take the car

to travel this distance? Answer in units of s.
Physics
1 answer:
ANEK [815]2 years ago
3 0

Answer:

t = 13.7 s or t = 14 s with proper significant figures

Explanation:

The initial speed is 0 m/s since the car starts from rest, acceleration is 5.5 m/s2 and distance is 523 m.

Since we have initial speed, acceleration and distance we can use the following formula to find the time. We can now use algebra to work out our answer.

d = vt + \frac{1}{2}at²

523 = (0)t + (\frac{1}{2})(5.5)t²

523 = 2.8t²

186.8 = t²

13.7 s = t

(t = 14 s with proper significant figures)

You might be interested in
The pulse site located at the point where the upper leg bends is called the
VLD [36.1K]
The pulse site located at the point where the upper leg bends is called the femoral. It is an artery found in the thigh. It is large and is deemed as the main arterial supply for the lower part of the body. It is known as the second artery that is the largest. It is being used as the catheter access artery. From it, diagnostics for the heart, brain, arms, kidney and other parts can be directed to the other arterial system. It can also be used as a source to draw blood that is from the arteries when there is low blood pressure.
3 0
3 years ago
The source of the earth’s magnetic field is found in the _____.
telo118 [61]
The source of the earth's magnetic field is found in the ;LIQUID MAGNETIZED IRON IN THE CORE OF THE EARTH. The earth's magnetic field is believed to be generated very deep down in the earth's core as a result of molten iron which it contains. 
5 0
3 years ago
Read 2 more answers
Give a example of scalar quantity
Serhud [2]

speed, volume, mass, temperature and power

7 0
3 years ago
Read 2 more answers
A tow truck is pulling 25,000 kg van with a tow hook that meets the van at an angle of 30° with the ground. How much force must
Law Incorporation [45]

Answer:

86605.08 N

Explanation:

The equation to calculate the force is:

Force = mass * acceleration

The force and the acceleration does not have the same direction in this case, so we need to decompose the force into its horizontal component, which is the force that will generate the horizontal acceleration:

Force_x = Force * cos(30)

Then, we have that:

Force_x = mass * acceleration

Force * cos(30) = 25000 * 3

Force * 0.866 = 75000

Force = 75000 / 0.866 = 86605.08 N

3 0
3 years ago
The basic unit of electric current is the
xxMikexx [17]

The ampere (A) is a basic SI unit consisting of the amount of electric charge or number of electrons that pass a point in a electrical circuit in one second. The volt (V) is the electrical potential causing electrons to move through a wire. It is a joule of energy per coulomb of charge.

5 0
3 years ago
Other questions:
  • Can someone check my answers and tell me if their correct?
    9·1 answer
  • Standing at a crosswalk, you hear a frequency of 540 Hz from the siren of an approaching ambulance. After the ambulance passes,
    11·1 answer
  • 1<br> A truck increases its speed from 15 m/s to 60 m/s in 15 s. Its acceleration is
    6·1 answer
  • A mass is hung from a spring and set in motion so that it oscillates continually up and down. The velocity v of the weight at ti
    9·1 answer
  • A car travels for an hour at a speed of 20 km/r, the next two hours at a speed of 65 km/r and the final hour at a speed of 85 km
    13·1 answer
  • Financial planning begins with
    14·1 answer
  • A researcher collected data on 100 random homes in Wake County. She then created the following histogram of when each home was b
    9·1 answer
  • Helppp pleaseeeeeeee. NO LINKS. HELP HELP HELP
    13·1 answer
  • Meme on newtons law of motion (should me made ur self not from any searh engine)
    10·1 answer
  • 7. When will an object's displacement and distance traveled be different?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!