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
yaroslaw [1]
2 years ago
7

What is the acceleration of a 4,000 kg car pushed with a force of 12,000 N?

Physics
2 answers:
jek_recluse [69]2 years ago
8 0

Answer:

3 m/s

Explanation:

A= F/m

12,000/ 4000 = 3

Lady bird [3.3K]2 years ago
7 0

Answer:

3 m/s^2

Explanation:

The equation you have to use is F=ma because the problem is a Newton's 2nd law problem.

Our known values are:

F ( Force ) = 12,000 N

m ( mass ) = 4,000 kg

a ( acceleration ) = ?

Now we plug in the known values into the equation and solve

F=ma

12,000=4,000a

We have to divide 4,000 by both sides to isolate the a value

12,000/4,000=4,000/4,000a

The 4,000s on the right of the equation cancel.

And 12,000 divided by 4,000 equals 3

The acceleration (a) is 3 meters per second squared (m/s^2)

Next, check to make sure 3 does work by plugging it back into the equation.

12,000=4,000*3

12,000=12,000 ✔

As you can see, the acceleration will be 3 m/s^2

You might be interested in
The world will face energy crisis in near future justify this statement
jeka57 [31]

Answer:

Nowadays most of our works are being done through different types of energy which are non-renewable. People are wasting lot of energy (hydel, dolar etc.) due to which in future we can face energy crisis.

5 0
3 years ago
The hairdryer has a plastic case so there is no need for an earth wire connection in the plug.
kolbaska11 [484]
Gravitational attraction / field strength increases when closer; A light dependent resistor (LDR) can be used as a sensor to detect light intensity.
4 0
3 years ago
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
Irina18 [472]

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

3 0
2 years ago
Is velocity ratio of a machine affected by applying oil on it?Explain with reason.​
disa [49]
Factors affecting friction

The intensity of friction depends on following factors: i) The area involved in friction. ii) The pressure applied on the surfaces. Force = Pressure ´ Area Frictional force will increase, if the area of contact will increase or if pressure applied on the surface increased.

Methods to reduce friction

i) Polish the contact surface. ii) Put oil or grease so that it fills in the small gaps of the flat parts. iii) Use ball bearings to reduce area of contact between rotating parts.

Lubrication

Following methods can be used to reduce friction: Oil is either thin or viscous. It depends upon SAE No. of oil. (SAE means Society of Automotive Engineers). If we use very viscous oil, it does not reach all the parts. Very thin oil will flows away easily and gets wasted. Grease is used in such cases. It is generally used around ball-bearing. Normal grease or oil is never used where there is high pressure, high temperature and high speed. Special lubricants are used in such cases. In cold season the oil becomes thick and in hot season it becomes thin. Therefore selection of lubrication also depends on the season. It is always advisable to refer operating manual of the equipment before selecting the lubricant.
6 0
3 years ago
Calculate the acceleration of a student riding his bicycle in a straight line that speeds up from 4 m/s to 6 m/s in 5 seconds.
solong [7]
Acceleration is equal to velocity final minus velocity initial divided by time. 6m/s minus 4m/s divided by 5 seconds is 0.4m/s^2.

7 0
3 years ago
Other questions:
  • If the stone loses 10% of its speed in 10 s of grinding, what is the force with which the man presses the knife against the ston
    13·1 answer
  • How do magnets work?
    8·2 answers
  • Which statement describes the difference between renewable and nonrenewable energy sources
    14·1 answer
  • What are three effect of force​
    7·1 answer
  • In a game of pool, the cue ball strikes another ball of the same mass and initially at rest. After the collision, the cue ball m
    13·1 answer
  • What is Br charge after it gains an electron?
    8·1 answer
  • A student sits atop a platform a distance h above the ground. He throws a large firecracker horizontally with a speed. However,
    13·1 answer
  • A college student is working on her physics homework in her dorm room. Her room contains a total of 6.0 x 10^26 gas molecules. A
    7·1 answer
  • 25 points and i will give brainliest +5 star rating to a correct a correct answer!!!!
    14·1 answer
  • The voltage supplied to a circuit is 17 V and the current running through is 10 A. What is the power generated?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!