All Questions
Tagged with homework-and-exercises newtonian-gravity
890 questions
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Trajectory of the free end of a sliding rod on frictionless surface under gravity?
The problem is that there is a rod held in rest position at an angle x from the horizon on a frictionless surface and we have to predict the motion of the free end until it reaches ground.
my first ...
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Comparision of time taken between two points along different paths [closed]
I was wondering about a question which is as follows we have a body if mass $m$ at point (1,1) on the cartesian plane and gravity is acting along $-y$ axis. If we release the ball and there are $n$ ...
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Finding area swept around star, application of Kepler's 2nd law [closed]
Problem:
A Sun-orbiting periodic comet is the farthest from the Sun at 31.5 AU and the closest from the Sun at 0.5 AU. What is the area (in square AU per year) swept by the line joining the comet and ...
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What is the Dimensional Formula of Acceleration Due To Gravity? How to derive it? [closed]
Dimensions can refer to the minimum number of coordinates needed to specify a point within an object, or the power to which fundamental quantities are raised to express a physical quantity, So what is ...
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What is the maximum displacement at which a series of blocks can be displaced vertically?
This is a really simple question that I've been thinking. The statement is as following:
Consider you have a series of blocks, each of length $l$, width $w$, height $h$, and mass $m$ wich is evenly ...
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Is there a curve such that a ball rolling down it has constant velocity? [closed]
I tried using this approach to solve another problem, however I couldn't find anything no matter how hard I tried. I am not really familiar with problems of this sort and mechanics in general. Because ...
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"Pressure" due to gravitational compression in a uniform sphere
I was trying to solve the following problem from the book Problems in General Physics by I.E. Irodov:
1.216: A uniform sphere has a mass M and radius R. Find the pressure p inside the sphere, caused ...
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What is the "compression force" in spaghettification?
15.2 (a) $M=0.5M_{\odot}$, $a=0.49\times10^9\mathrm{ms^{-2}}\approx4\times10^7g$. (b) A standing astronaut will be subject to a stretching tidal force. The gravitational acceleration felt by the feet ...
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Need clarification about gravitational potential energy and total mechanical energy
Consider this situation: "mass $m_1$ and mass $m_2$ are at the same height. $m_2$ is greater than $m_1$. If we define their current position to have zero potential energy, they have same ...
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How do I calculate the time it would take for the Earth to fall into the Sun? [duplicate]
I'm trying to calculate how long it would take the Earth to fall into the Sun if it lost all of its tangential velocity. Below is my best attempt, but no matter what I keep getting an incorrect answer ...
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Calculating time for acceleration varying with distance [duplicate]
Question is basically the title
Like if something is falling towards a body with mass M (mass is not that big so Newtonian equations will be fine) from a distance x from it's center. How long will it ...
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How would I calculate the gravity at a given depth on a planet with two distinct layers with different densities?
If you assume a planet to be one density then gravity just scales linearly from the centre to the surface, and you can use the surface gravity equation.
How would you go about working out the gravity ...
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How Strong does the tidal force has to be to pull debris off a planet?
How strong do tidal forces have to be to rip stuff off of a planet? I have this question:
A planet covered in loose debris with radius $r$ orbits a black hole of mass $M=1\cdot 10^{35} \text{ kg}$ in ...
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Downward Acceleration of a Falling Chimney's Tip
I was checking out this explanation on Harvard’s site about why the top of a falling chimney seems to fall faster than gravity (https://sciencedemonstrations.fas.harvard.edu/presentations/falling-...
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Rocket equation non-constant gravity
I am currently trying to teach myself differential equations and wondered about the following problem.
You have an object (a rocket of constant mass $m_r$) and initial velocity $v_0$ that tries to ...
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