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
faust18 [17]
3 years ago
8

A driver, traveling at 22.0 m/s, slows down her 2.00 x 103 kg car to stop for a red light. What work is done by the friction for

ce against the wheels?
Physics
1 answer:
Artemon [7]3 years ago
6 0
Some work will be done on friction between wheels and road but it is negligible compared to work done on friction on breaks. 

W = Ek = (m*v^2)/2 = 2000*22^2/2 = 1000*22^2 = 484KJ

Because car is not changing its potential energy, there is no work to be done on while changing it which means that all goes on changing kinetic energy (energy of motion)
You might be interested in
Which term is defined as a change in an object's position relative to a reference point?
Gre4nikov [31]
The answer would be REFERENCE POINT
4 0
3 years ago
Read 2 more answers
Which bulbs would be on and or off if :
insens350 [35]
Bulbs c and b would still be screwed in if they were in to begin with and bulbs A, D, and E. would be unscrewed
6 0
3 years ago
Read 2 more answers
table 4.interaction between two permanent bar magnets what i did to the pair of magnets to cause interaction and observed the ef
Leni [432]

A magnet is a substance which attracts or repels another substance. In a magnet, the atoms are aligned in a particular direction in domains. A magnet has two poles: North pole and South pole. The domains are oppositely aligned in unlike poles. Like poles repel each other where as unlike poles attract each other. Hence, when we bring like poles closer, repulsion would be experienced. In case of unlike poles, they would stick together.

6 0
2 years ago
Read 2 more answers
The diagram below shows a boat moving north in a river at 3m/s while the current in the river moves south at 1 m/s.
salantis [7]

Answer it will move slower:

Explanation: cause the force that’s opposite of it

4 0
2 years ago
Find the amount of force required to move an object of 1200 kg at a velocity of 54 km/hr?​​
Mkey [24]

Answer:

0 Newtons

Explanation:

The velocity of the object does not change, it is a constant 54 km/hr. When velocity does not change, acceleration is zero. Using the formula Force = mass x acceleration, we find:

mass = 1200 kg

acceleration = 0

F  = (1200)(0) = 0

4 0
2 years ago
Other questions:
  • A golf club hits a stationary 0.05kg golf ball with and average force of 5.0 x 10^3 newtons accelerating the ball at 44 meters p
    15·1 answer
  • Mass is a fundamental quantity ​
    9·1 answer
  • If you were to take the universe's temperature, what would the reading be?
    10·1 answer
  • DVDs and Blu-ray disks store information in patterns that are read by laser light. The shorter the wavelength of the light, the
    5·2 answers
  • A rock is dropped from a 110-m-high cliff. How long does it take to fall (a) the first 55.0 m and (b) the second 55.0 m?
    11·1 answer
  • What is seen as the creative force in the universe through which all things are connected?
    5·1 answer
  • Is a frame of reference usually moving
    6·1 answer
  • Explain what is meant by “In Phase” and “Out of Phase?
    9·2 answers
  • A car is moving with a velocity of45m/s. Is brought to rest in 5s.the distance travelled by car before it comes to rest is
    7·1 answer
  • Is telekinesis real??? I really wanna start learning it!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!