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
Afina-wow [57]
3 years ago
7

On a straight road with the +x axis chosen to point in the direction of motion, you drive for 5 hours at a constant 20 miles per

hour, then in a few seconds, you speed up to 60 miles per hour and drive at this speed for 1 hour.
What was the x component of average velocity for the 6-hour period, using the fundamental definition of average velocity, which is the displacement divided by the time interval?
Physics
1 answer:
Leviafan [203]3 years ago
8 0

Answer:

v = 26.7 mph

Explanation:

During the first 5 hours, at a constant speed of 20 mph, we find the total displacement to be as follows:

Δx₁ = v₁*t₁ = 20 mph*5 h = 100 mi

Assuming we can neglect the displacement during the speeding up from 20 to 60 mph, we can find the the total displacement at 60 mph as follows:

Δx₂ = v₂*t₂ = 60 mph*1 h = 60 mi

So, the total displacement during all the trip wil be:

Δx = Δx₁ + Δx₂ = 100 mi + 60 mi = 160 mi

So we can find the the average velocity during the 6-hour period, applying the definition of average velocity, as follows:

v = Δx / Δt = 160 mi / 6 h = 26.7 mph

You might be interested in
Binding energy is the energy needed to
densk [106]

Answer:

Answer C

Explanation:

4 0
2 years ago
(1) Expansion of concrete
Pachacha [2.7K]
Abcdefghijklmnopqurtuv
6 0
2 years ago
List several examples of applied force, normal force, and friction that you’ve observed in your life.
grandymaker [24]

applied forces would be push for example.

normal forces would seem to be a force such as gravity.

friction for example when you try to slide on carpet but the fabric or whatever its made of stops you.

3 0
3 years ago
Daniel takes his two dogs, Pauli the Pointer and Newton the Newfoundland, out to a field and lets them loose to exercise. Both d
DedPeter [7]

Answer:

Explanation:

3.4 m/s due North, -1.1 m/s due East

7 0
3 years ago
A car speedometer has a 6% uncertainty. What is the range of possible speeds when it reads 100 km/h?
MAVERICK [17]

<span>Range = 88.5 Km/h - 94.5 Km/h</span><span>
</span>

3 0
2 years ago
Other questions:
  • I will give brainliest) According to Newton's second law of motion, when an object is acted on by an unbalanced force, how will
    5·2 answers
  • f a wave has a wavelength of 9 meters and a period of 0.006, what is the velocity of the wave? A. 1,200 m/s B. 1,500 m/s C. 1,80
    12·2 answers
  • If a glass rod is rubbed with a dry cloth, what kind of charge would it be:
    12·1 answer
  • For a large atom, which of the following would give the most stable nuclear configuration?
    10·2 answers
  • Light of wavelength 652 nm in vacuum is incident on a single slit whose width is 1.60 × 10-5 m. The setup is then immersed in wa
    6·1 answer
  • When solving projectiles you will often get two possible times for solutions. Sometimes a time will be negative and can be rejec
    5·1 answer
  • Please help me, i beg you.
    6·1 answer
  • I have a test for my finals can y’all help me?
    6·1 answer
  • If a ball is thrown from a tall building, how tall is the building if it takes 6s for the ball to land?
    7·1 answer
  • What do echolocation and ultrasounds have in common?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!