All Questions
Tagged with newtonian-gravity acceleration
276
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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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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 ...
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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 ...
- 69
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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, ...
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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"...
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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{...
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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 ...
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So I've found out heavier objects technically do fall faster? [duplicate]
Given the Earth's mass to be $M_E$, I know that $F_G = -\frac{GM_Em}{d^2}$, so the gravitation acceleration of a mass towards Earth is $g = -\frac{GM_E}{d^2}$. But what about the force exerted by the ...
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How to understand the larger than $g$ acceleration of the free end of a falling chain?
In this article I read that the acceleration of the free end of a falling folded chain is greater than $g$, but I cannot really understand why. Why isn´t the acceleration just $g$ since it is a free ...
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What happens physically when object is thrown up when $v$ becomes 0 at max height?
When velocity=0 during maximum height when an object is thrown up, what does that actually mean?? does that actually mean that the object doesn't change it's position over dt time period when at ...
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When a plane is accelerating upwards, why is both the upwards acceleration and gravitational acceleration positive?
At a weight m, a plane is acceleration upwards at rate of a. We also remember the value of g.
From my understanding, we have two opposite forces that we care about.
The force due the gravitational ...
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Why acceleration bigger when upward force is present?
Imagine object is falling down and has a mass of 1kg. There's an upward force on it of 50N. Let's calculate what the acceleration is.
$$ F_n = ma = 50 - mg = 50 - 9.8 = 40.2 $$
where ...
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Why can't we feel Earth's acceleration? [duplicate]
The centripetal force on Earth is constantly exposing Earth to the acceleration. Why can't we feel this change of direction?
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Change in $g$ effective due to rotation
$g$ effective at any latitude changes due to rotation of earth. Does it also change due to rotation when the body is at height or at depth or does it change only at the surface?
Edit: I am referring ...
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How can we use Newton's laws in an accelerating frame? [duplicate]
This question is bothering me for a while. As far as I know, newton's laws are valid for any inertial or non-accelerating frame. Then how can we apply newton's law on earth where we are constantly ...
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