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
Tanya [424]
1 year ago
6

A 40.0 -kg box initially at rest is pushed 5.00 m along a rough, horizontal floor with a constant applied horizontal force of 13

0N . The coefficient of friction between box and floor is 0.300 . Find(d) the work done by the gravitational force..
Physics
1 answer:
Irina18 [472]1 year ago
3 0

The work done by the gravitational force = 0

Given the mass of the box = 40 kg

The box is initially at rest.

Distance moved by the applied force = 5m

Force applied = 130 N

Co-efficient of friction between the box and floor = 0.3

The box is moved only in the horizontal direction by the applied force.

Gravitational force is applied in a direction perpendicular to the applied force. hence it doesn't do any work on the box.

Therefore, the work done by the gravitational force is zero.

Learn more about the gravitational force at brainly.com/question/862529

#SPJ4

You might be interested in
Why is it not necessary for radio telescope surfaces to be as smooth as a mirror?
Law Incorporation [45]
It doesn't on account of radio waves are longer than optical waves. Radio waves are a sort of electromagnetic radiation with wavelengths in the electromagnetic range longer than infrared light. These long waves are in the radio locale of the electromagnetic range.
8 0
3 years ago
If a car goes down Lake at 30 miles per hour how far will it go in 0.25 hours?
kati45 [8]

Answer:

7.5 miles

Explanation:

0.25 hours=15minutes.

So you do

30 miles=60minutes

x =15minutes

cross multiply

Ans-7.5

7 0
3 years ago
Dinah is playing cards with her friends, and it is her turn to deal. A card with a mass of 2.3 g slides 0.35 m along the table b
Inga [223]

Answer:

soln,

=2.3+0.35-0.24

=2.41 answer

4 0
2 years ago
I just need number 2
il63 [147K]

We will apply the conservation of linear momentum to answer this question.

Whenever there is an interaction between any number of objects, the total momentum before is the same as the total momentum after. For simplicity's sake we mostly use this equation to keep track of the momenta of two objects before and after a collision:

m₁v₁ + m₂v₂ = m₁v₁' + m₂v₂'

Note that v₁ and v₁' is the velocity of m₁ before and after the collision.

Let's choose m₁ and v₁ to represent the bullet's mass and velocity.

m₂ and v₂ represents the wood block's mass and velocity.

The bullet and wood will stick together after the collision, so their final velocities will be the same. v₁' = v₂'. We can simplify the equation by replacing these terms with a single term v'

m₁v₁ + m₂v₂ = m₁v' + m₂v'

m₁v₁ + m₂v₂ = (m₁+m₂)v'

Let's assume the wood block is initially at rest, so v₂ is 0. We can use this to further simplify the equation.

m₁v₁ = (m₁+m₂)v'

Here are the given values:

m₁ = 0.005kg

v₁ = 500m/s

m₂ = 5kg

Plug in the values and solve for v'

0.005×500 = (0.005+5)v'

v' = 0.4995m/s

v' ≅ 0.5m/s

4 0
2 years ago
How many minerals are found in earths crust ?
Damm [24]
You can find your answer here www.rsc.org/education/teachers/resources/jesei/minerals/students.htm
5 0
3 years ago
Read 2 more answers
Other questions:
  • A dolphin's tops speed is 17 m/s. If a dolphin swam at this constant velocity for one hour
    7·1 answer
  • Hiw many times lager then a centimeter is a dekagram​
    5·1 answer
  • The force required to make an object travel along a circular path is:
    7·2 answers
  • A train travels 77 kilometers in 1 hour, and the 66 kilometers in 1 hour. What is the average speed?
    13·1 answer
  • Consider a semi-infinite (hollow) cylinder of radius R with uniform surface charge density. Find the electric field at a point o
    9·1 answer
  • Which best describes the motion of air particles when a transverse wave passes through them?
    11·1 answer
  • Humans have three types of cone cells in their eyes, which are responsible for color vision. Each type absorbs a certain part of
    7·1 answer
  • A bullet has a mass of 8 grams and a muzzle velocity of 340m/sec. A baseball has a mass of 0.2kg and is thrown by the pitcher at
    13·1 answer
  • How much power will it take to move a 50Kg box 10m across a floor that has -50N of Frictional forces in 3 seconds?
    8·1 answer
  • 11. A roller coaster car is moving slowly up a long ramp to the very top of the roller coaster. It goes over the top and starts
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!