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
Cerrena [4.2K]
3 years ago
5

A Jeep accelerated at 2.2 m/s2 until after 18 seconds its displacement was 660 meters. Assuming the Jeep traveled in a straight

line, calculate the initial velocity.
Physics
1 answer:
pogonyaev3 years ago
5 0
Ok so we know:
The time (t) is 18seconds
The acceleration (a) is 2.2m/s2
The displacement (r) is 660

Using the equation
r = ut +  \frac{1}{2} a {t}^{2}
With 'u' being the initial velocity we want, we get:
660 = 18u + 356.4
So:
18u = 303.6
So:
u = 16.8666
So the original/initial velocity was 16.8666 or 16.87 m/s

Hope this helped

You might be interested in
If the potential difference across the bulb in a camping lantern is 9.0 V, what is the
Gre4nikov [31]

Answer:

9V

Explanation:

The potential difference across the terminal as the same and thats because we are assuming that the source has no internal resistance.

Internal resistance are usually little resistances in the supply.

4 0
3 years ago
When water in a lake freezes, the ice that forms floats on top of any water that is still liquid. Why does the ice float?
ddd [48]

Answer:

it floats because the lake is cold at that moment so when part of the lake freezes it still remains solid and floats because of the lake and the surrounding of the lake is still cold

5 0
3 years ago
Remoras are small fish that attach themselves to the sides of sharks. They get protection and scraps of food from the sharks. Th
mixas84 [53]
The answer is A. Commensalism. <span>Commensalism, in ecology, is a class of relationships between two organisms where one organism benefits from the other without affecting it. This was the briefest answer from Wiki. Hope it helps, and sorry I'm late.</span>
5 0
3 years ago
A 5 kg ball is sitting on top of a hill. It has a Potential Energy of 6000J. What is the height of the ball?​
natali 33 [55]

Explanation:

mass=5 kg

potential energy=6000j

height=?

Now

potential energy =m.g.h

or 6000=5*9.8*h

or 6000=49h

or 6000÷49=h

or h= 122.45m

6 0
3 years ago
What is a homopolar motor?????)
PSYCHO15rus [73]

Answer:

A homopolar motor is a direct current electric motor with two magnetic poles, the conductors of which always cut unidirectional lines of magnetic flux by rotating a conductor around a fixed axis so that the conductor is at right angles to a static magnetic field.

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • The top floor of the Ostankino TV Tower in Moscow is located at a height of 360.4 m. Assume a stone is dropped from this top flo
    5·1 answer
  • Why are there so few working wave power stations?
    15·2 answers
  • A man standing in front of a mountain beats a drum at regular intervals. The rate of drumming is generally increased and he find
    10·1 answer
  • How many chins does danisnotonfire have?
    5·2 answers
  • which of these statements best compares the processes by which energy is produced in the sun and nuclear power plants? a. atoms
    10·2 answers
  • A metal ring 4.30 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpend
    14·1 answer
  • Calculate the value of 200°C in Kelvin
    5·1 answer
  • The velocity of a car increases from 10 km/h to 50 km/h in 5 seconds. What is its acceleration?
    10·1 answer
  • 5.1 What is the nucleus composed of ?
    14·1 answer
  • A test charge gains 10 joules of potential energy as it moves through an electric field. It starts its movement at point 1 and e
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!