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
wolverine [178]
3 years ago
11

A 5 kg block is sliding down a plane inclined at 30^0 with a constant velocity of 4 m/s. To determine the coefficient of frictio

n between the block and the plane, what pieces of information do you need?

Physics
2 answers:
Leya [2.2K]3 years ago
3 0

Answer:

The necessary information is if the forces acting on the block are in equilibrium

The coefficient of friction is 0.577

Explanation:

Where the forces acting on the object are in equilibrium, we have;

At constant velocity, the net force acting on the particle = 0

However, the frictional force is then given as

F = mg sinθ

Where:

m = Mass of the block

g = Acceleration due to gravity and

θ = Angle of inclination of the slope

F = 5×9.81×sin 30 = 24.525 N

Therefore, the coefficient of friction is given as

24.525 N = μ×m×g × cos θ = μ × 5 × 9.81 × cos 30 = μ × 42.479

μ × 42.479 N= 24.525 N

∴ μ = 24.525 N ÷ 42.479 N = 0.577

bearhunter [10]3 years ago
3 0

Answer:

We only need the angle of inclination.

The coefficient of friction is 0.58

Explanation:

Check attachment for diagram

For a book placed on an inclined plane, the force acting on the object causing it to slide downwards is the moving Force (Fm).

Fm = Wsin(theta) = mgsin(theta)

The force opposing the moving force is the frictional force Ff

Ff = nR where

n is the coefficient of friction

R is the normal reaction = mgcos(theta)

For the body to have a constant velocity (not accelerate), then Fm =Ff and W = R

n = Ff/R

n = Fm/R

n = Wsintheta/Wcostheta

n = sintheta/costheta

n = tan(theta)

Given theta = 30°

n = tan 30°

n = 0.58

the coefficient of friction between the block and the plane is 0.58

The calculation shows that the only information we need to get the coefficient of friction is the angle is inclination

You might be interested in
How many sides does a dodecahedron have?
Serhud [2]

Answer:

twelve facesFrom left to right the solids are tetrahedron (four sides), cube (six sides), octahedron (eight faces), dodecahedron (twelve faces), and icosahedron (twenty faces).

Explanation:

Ayo hope you enjoy

8 0
2 years ago
Read 2 more answers
When food is digested, the
Mice21 [21]

Answer:

Chemical change

Explanation:

A chemical change is what happens. The food digested changes smell due to some enzyme the has acted on the food which catalyzes the rate of digestion. The enzymes acts on the food in order to speed up the rate of the reaction (digestion) and in turn causing the smell.

4 0
3 years ago
When is your kinetic energy the least when swinging on a park swing?
Afina-wow [57]

Answer:

An active pendulum has the most kinetic energy at the lowest point of its swing when the weight is moving fastest.

Explanation:

SO YOU HAVE THE LEAST KINETIC ENERGY AT THE HIGHEST POINT OF THE SWING WHEN IT'S NOT ACTIVE

7 0
2 years ago
Two balls are rolling using the same force. Which law explains why the bowling ball will roll a shorter distance than a soccer b
8_murik_8 [283]

Answer:

newton's 2nd  law

Explanation:

In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.

6 0
2 years ago
If a photon of Light leaves the sun than reachers the earth 494 second later. What is the distance from the earth to sun
denis-greek [22]

The distance from the Earth to the Sun is 92.96 million mi.

4 0
3 years ago
Read 2 more answers
Other questions:
  • A proton, mass 1.67 × 10−27 kg and charge +1.6 × 10−19 c, moves in a circular orbit perpendicular to a uniform magnetic field of
    11·1 answer
  • An automobile with a radio antenna 1.0 m long generates an emf, V1, since it is traveling at 100.0 km/h in a location where the
    14·2 answers
  • Exercise 2.4.6: Suppose you wish to measure the friction a mass of 0.1 kg experiences as it slides along a floor (you wish to fi
    6·1 answer
  • A piano tuner uses a tuner to create a tone of 5.00 x 10² Hz. When a key on the piano is struck he hears 5 beats per second. Wha
    15·1 answer
  • After a laser beam passes through two thin parallel slits, the first completely dark fringes occur at 19.0 with the original dir
    9·1 answer
  • The kinetic energy of an object depends on two factors, ___, and ___. HINT: Remember comparing the kinetic energy of the marble
    5·2 answers
  • Help plsssss<br><br><br><br><br> ..........
    14·1 answer
  • When running a long distance during the Texas summer which of the following would happen?
    12·1 answer
  • A bullet (m=20g) shot with a speed of 800 m/s hits an oak tree and sticks 4cm inside it.
    13·1 answer
  • The students on the right are applying a force of 100 N to the right. This is shown by the red arrow. The students on the left a
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!