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
zavuch27 [327]
3 years ago
9

An object of mass 4kg is moving along a horizontal plane. If the coefficient of kinetic friction is 0.2 find the friction force

acting on the object.
Physics
1 answer:
lana66690 [7]3 years ago
5 0

Answer:

The friction force acting on the object is 7.84 N

Explanation:

Given;

mass of object, m = 4 kg

coefficient of kinetic friction, μk = 0.2

The friction force acting on the object is calculated as;

F = μkN

F = μkmg

where;

F is the frictional force

m is the mass of the object

g is the acceleration due to gravity

F = 0.2 x 4 x 9.8

F = 7.84 N

Therefore, the friction force acting on the object is 7.84 N

You might be interested in
Which of the fundamental forces explains the structure of atoms and molecules?
spayn [35]
The electromagnetic force<span> holds atoms and molecules together.
like a magnet's pull on steel.</span>
7 0
3 years ago
Read 2 more answers
Which one of the following statements concerning the momentum of a system when the net force acting on the system is equal to ze
Alex

Answer:

D

Explanation:

According to newton's 2nd law rate of change of momentum is directly proportional to the force applied on the body. Since, net Force is zero this means momentum did not change or momentum of the body remained constant.

Hence, the system have constant value of momentum. Therefore, option D is correct.

5 0
3 years ago
Imagine that you and a friend are discussing your health-related fitness levels. What assessments could you and your friend
Westkost [7]

Answer: In order to help improve your fitness levels you can swim, jog/run, body weight exercises, and a balanced diet. Explain why the greatest benefits to cardiorespiratory fitness come from sustained physical activities like running, walking and cycling.

Explanation:

5 0
3 years ago
Read 2 more answers
Please list them from top to bottom, for exp like in your response, a,g,q,d. Giving quite some points for it.
Aleks04 [339]
D,f,g,h,i,a,e,c,j. I’m sure that it
7 0
3 years ago
Please help ASAP guys !!! Thanks
andreev551 [17]

Answer:

(a) gravitational potential energy converted to kinetic energy

(b) chemical energy is converted to light or heat energy

(c) mechanical energy is converted into kinetic energy

7 0
2 years ago
Other questions:
  • A light beam is incident on a piece of fluorite (n = 1.434) at the Brewster's angle.
    5·1 answer
  • Which of these forces pull or push upward, and which pull or push downward? Explain.
    10·1 answer
  • Which scientist was the first to accurately measure the speed of light?
    10·2 answers
  • Darren drives to school in rush hour traffic and averages 28 mph. He returns home in mid-afternoon when there is less traffic an
    5·1 answer
  • Zeros are never significant digits true or false
    14·2 answers
  • Two positive point charges with charges q1 and q2 are separate by a distance of 30cm. A third positive charge qo is placed betwe
    14·1 answer
  • The frequency of violet light is 7.5x10 to the 14th power hertz. What is the wavelength?
    5·1 answer
  • Everything is made up of blank and all matter is made of blank. There are three basic parts of atom: protons,neutrons, and blank
    8·1 answer
  • Identify the word being referred to choose your answer from the words below​
    13·1 answer
  • NEED HELP FROM SCIENCE GENIUS !! POINTS WILL BE GIVEN AND DO GIVE ME A DECENT ANSWER !!!
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!