All Questions
Tagged with newtonian-gravity acceleration
276
questions
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2
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70
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Do objects really "fall" at the same rate? [duplicate]
I understand that a hammer and a feather were dropped on the moon and they both landed at the same time. I understand that for all practical intents and purposes all objects do fall at the same rate.
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- 207k
1
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48
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Why does an accelerometer read geavity when at rest? [duplicate]
This may sound like a stupid question but why does an accelerometer read 9.8 (gravity) on the vertical axis when I set it down on a table?
I have just finished AP Physics Mechanics and was under the ...
- 207k
27
votes
10
answers
5k
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What is the gravitational force acting on a massless body?
It's a well known fact that acceleration due to gravity is independent of the mass of the accelerating body, and only depends on the mass of the body it is accelerating towards and the distance from ...
- 506
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3
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Infinite acceleration of bob in pendulum with no friction or air resistance
So i'm a bit confused about something. If we take a mathematical pendulum and we apply a force to it. We ignore all friction and air resistance and only consider gravity and the force applied to bob. ...
CommunityBot
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7
answers
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What changes the velocity perpendicular to radius in an elliptical orbit?
I'm working currently on a problem that asks to justify that angular momentum and kinetic energy conserves for a planet in an elliptical orbit. Although I've been taught that angular momentum should ...
- 10.7k
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Newton's 3rd law and normal force
There is something I hope you can help me understand...
According to my physics course, when I stand on the surface of earth, the normal force prevents me from "falling down" because it's ...
CommunityBot
- 1
7
votes
4
answers
3k
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Why is the Moon's gravity so high compared to its mass?
According to Wikipedia, the Moon's mass is about 1.23% of Earth's, but its gravity is 0.1654g or 16.5%. If gravity is proportional to mass, why isn't the Moon's gravity 1.23% of Earth's?
EDIT:
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- 224
3
votes
4
answers
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What is G-Force?
Can you explain me what is the G-Force? I always thought it was the force caused by the gravitational acceleration.. But I just saw on myth busters that they calculated the g-force on a belt during a ...
- 183
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2
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Gravitational attraction between two bodies and gravitational accelaration [duplicate]
Since Newtons laws on gravity state that the gravitational attraction between two bodies is directly proportional to their masses and inversely proportional to the square of the distance between them, ...
- 207k
0
votes
1
answer
1k
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Calculate the magnitude of the acceleration due to gravity including its uncertainty?
I made a free fall time experiment and now I'm trying to make a report.
The experiment consists of releasing a steel ball from various heights
hi and measuring corresponding free fall times τi . ...
CommunityBot
- 1
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votes
1
answer
319
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$G$-Force on falling object?
I'm trying to understand how G-Force is calculated, specifically with drop tests but also generally.
If an object is sitting on a table it has a G-Force of 1. i.e. it has 9.81m/s^2 of acceleration ...
CommunityBot
- 1
1
vote
1
answer
884
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Calculating the position of an object given object's initial position and velocity influenced by given acceleration vectors [closed]
The red circle is being pulled by two gravity points. Assume that the red circle has a given position (x,y) and a given velocity (vx, vy).
I need to calculate the velocity and position of the red ...
CommunityBot
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1
vote
1
answer
136
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Does General Relativity imply greater accelerations than Newtonian gravity in strong gravitational fields? [duplicate]
Does General Relativity imply greater accelerations than Newtonian gravity in strong gravitational fields, such as at 2 m/s^2?
Do the general relativistic corrections add up to more "gravity"...
- 12.4k
0
votes
1
answer
70
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What would be the Earth acceleration in the units where $\hbar=c=1$? [closed]
In my calculations, I have to use the units in which the Planck constant and light velocity must be taken as unity.
Now, what would be the value of Earth's gravitation force $\implies g = G\cdot\frac{...
- 56.4k
5
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6
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608
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Why does gravity cause objects to pull other objects with constant acceleration and not constant force? [duplicate]
I know that this may come off as an incredibly dumb question, but please hear me out for a while.
Why don't objects just tug at other bodies with a constant force? Instead, why do they apply ...
- 7,165