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
Anna71 [15]
3 years ago
15

a 1600 kg car on flat ground is moving 6.25 m/s. its engine creates 1150 N forward force as the car moves 45.8 m. what is it fin

al KE?(unit=J)PLEASE HELP
Physics
1 answer:
Sveta_85 [38]3 years ago
6 0

Answer:

83,900 J

Explanation:

First, find the acceleration:

F = ma

1150 N = (1600 kg) a

a = 0.719 m/s²

Now find the final velocity.

Given:

Δx = 45.8 m

v₀ = 6.25 m/s

a = 0.719 m/s²

Find: v

v² = v₀² + 2aΔx

v² = (6.25 m/s)² + 2 (0.719 m/s²) (45.8 m)

v = 10.2 m/s

Now find the final KE:

KE = ½ mv²

KE = ½ (1600 kg) (10.2 m/s)²

KE = 83,920 J

Rounded to three significant figures, the final kinetic energy is 83,900 J.

You might be interested in
Which ones of the following lights are present in both sunlight and a grow
KatRina [158]

Answer:

visible and ultraviolet

3 0
2 years ago
A wave that is traveling fast can be said to have a high ___
S_A_V [24]

A wave that is traveling fast can be said to have a high speed.<em> (b) </em>

Just like a car, motorcycle, or freight train that is traveling fast.

3 0
3 years ago
Which option correctly describes a model of methanol. URGENT
STALIN [3.7K]
The last one.

One grey sphere, Four white spheres, and One red spheres
4 0
3 years ago
In an automobile collision, a 44-kilogram passenger moving at 15 meters per second is brought to rest by an air bag during a 0.1
const2013 [10]

Answer:

6,600N

Explanation:

According to second law of motion, Force = mass × acceleration

If acceleration = change in velocity/time = 15/0.10

Acceleration = 150m/s²

Given mass = 44kg

Force = 44× 150

Force = 6,600N

Magnitude of the average force exerted on the passenger during this time is 6,600N

8 0
3 years ago
HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
JulijaS [17]
Total amount of energy would remain constant according to law of conservation of energy. i.e., 50 Joules

In short, Your Answer would be Option C) <span>50 Joules because as energy converts from one form to another, it cannot be created or destroyed during the conversion.
</span>
Hope this helps!

7 0
3 years ago
Read 2 more answers
Other questions:
  • Jonah rode his skateboard 350 meters down a straight road at a constant velocity. He skated
    8·1 answer
  • Kramer goes bowling and decides to employ the force of gravity to "pick up a spare." He rolls the 7.0-kg bowling ball very slowl
    14·1 answer
  • What part of earth systems interact to form a storm like this hurricane near Florida
    6·1 answer
  • The temperature of a star is 6000K and its luminosity is 1000. Which type of star is it?
    15·2 answers
  • Which structure is responsible for breaking down sugar molecules in order to supply energy to the cell? A B C D
    9·1 answer
  • Sometimes it is very hard to hear in a gymnasium because of echoes . How can you changed it
    10·1 answer
  • What movement allows us to move our side to side?
    7·1 answer
  • Please answer and fast i am in a test
    11·2 answers
  • During the expansion of a gas in piston-cylinder the relation between the pressure and the volume is given as
    9·1 answer
  • Tiny mass of 67kg and tubby mass of 83 kg are now on the opposite ends of a see saw and are both 1.4m from the balance point whe
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!