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
NeX [460]
3 years ago
10

How much force is required to accelerate a 2kg mass at 3 m/s2? answer key?

Physics
1 answer:
mr Goodwill [35]3 years ago
4 0
F = ma so u can plug in the given numbers and solve:

F = (2)(3)
You might be interested in
A 0.547 kg pizza is thrown straight up in the air. At a height of 2.30 m above the surface of the earth it has a speed of 5.00 m
natima [27]

Answer:

The total mechanical energy of the pizza crust is 19.2 J.

Explanation:

Mechanical energy is that which a body or a system obtains as a result of the speed of its movement or its specific position, and which is capable of producing mechanical work. Then:

Potential energy + kinetic energy = total mechanical energy

Kinetic energy is a form of energy. It is defined as the energy associated with bodies that are in motion and this energy depends on the mass and speed of the body.

Kinetic energy is defined as the amount of work necessary to accelerate a body of a certain mass and in a position of rest, until it reaches a certain speed.

Kinetic energy is represented by the following formula:

Ec = ½ *m*v²

Where Ec is kinetic energy, which is measured in Joules (J), m is mass measured in kilograms (kg), and v is velocity measured in meters over seconds (m / s).

In this case:

  • m=0.547 kg
  • v= 5 m/s

Replacing:

Ec = ½ *0.547 kg*(5 m/s)²

and solving you get:

Ec= 6.8375 J

On the other hand, potential energy is the energy that measures the ability of a system to perform work based on its position. In other words, this is the energy that a body has at a certain height above the ground.

Gravitational potential energy is the energy associated with the gravitational force. This will depend on the relative height of an object to some reference point, the mass, and the force of gravity. Then for an object with mass m, at height h, the expression applied to the gravitational energy of the object is:

Ep = m*g*h

Where Ep is the potential energy in joules (J), m is the mass in kilograms (kg) is h the height in meters (m) and g is the acceleration of fall in m / s² (approximately 9.81 m/s²)

In this case:

  • m= 0.547 kg
  • g= 9.81 m/s²
  • h= 2.30 m

Replacing

Ep= 0.547 kg *9.81 m/s²* 2.30 m

and solving you get:

Ep= 12.342 J

So:

Total mechanical energy= 12.342 J + 6.8375 J

Total mechanical energy= 19.1795 J≅ 19.2 J

<u><em>The total mechanical energy of the pizza crust is 19.2 J.</em></u>

6 0
3 years ago
What makes steel durable
sdas [7]

It is durable because it is one of the strongest metals and doesn't corrode easily.

4 0
3 years ago
The momentum of an object is proportional to its weight and speed.<br> a. true<br> b. false
Crank
It would be A.. True
4 0
3 years ago
I need help
Gala2k [10]

The energy of the wave will decrease.

The energy of a wave is given as

E = h f

where E = energy of waver

h = plank's constant

f = frequency of the wave.

From the formula , we see that the energy of the wave is directly proportional to the frequency of the wave. hence as the frequency of the wave decrease, the energy of the wave will decrease.

8 0
3 years ago
How can you increase the potential energy of a bouncing ball
ad-work [718]

Answer:

When you lift the ball, you are doing work to increase its gravitational potential energy. When you then release the ball, gravitational energy is transformed into kinetic energy as the ball falls. When the ball hits the floor, the ball's shape changes as it flattens against the floor.

Explanation:thats should be the way^^ in explaining

7 0
3 years ago
Other questions:
  • i know this is a lot to do but i will give you the highest amount of points (100, but you get 50 from it.) and i will cash app y
    5·1 answer
  • In which situations can you conclude that the object is undergoing a net interaction with one or more other objects? (Select all
    8·1 answer
  • A man is chased by a bull in a field at a speed of 10m/s for 60 seconds.How far does he get before he is gored by the annoyed bo
    7·1 answer
  • Brass is an alloy of copper and zinc the two metals are melted mixed and then solidified how would you best classify brass
    13·2 answers
  • At depths of greater than 60 m, ice moves by plastic deformation. What causes this transition from brittle to ductile behavior?
    15·1 answer
  • Based on this activity, is kinetic energy always transformed into potential energy?
    7·2 answers
  • Kinetic energy increases as
    7·2 answers
  • The negatively charged particle in an atom is a(n):
    12·1 answer
  • Select the correct answer. In a video game, a ball moving at 0.6 meter/second collides with a wall. After the collision, the vel
    13·1 answer
  • Why food cook faster with salt water than cook with pure water​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!