All Questions
Tagged with newtonian-mechanics free-body-diagram
1,852 questions
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Trajectory of the free end of a sliding rod on frictionless surface under gravity? [closed]
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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The Geometry of Infinitesimals
This is a bit of an odd question, but I have scoured the internet to no avail, so I am turning to Stack Exchange.
When studying calculus, I was always under the assumption that when you 'zoom' into a ...
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Should I explain this by Pascal's principle or simple Pressure/Force relationship?
I have a simple demonstration where two syringes are connected by a narrow tube, and one syringe has a wider diameter than the other. When you try to "compete" by having two people squeeze ...
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Circular Motion with a spring connected [closed]
How can the motion of a ball connected to spring, with some initial angular velocity be described mathematically for any general initial elongation and initial velocity?
I have made some equations ...
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Horizontal Force - Tilted Disk (Rolling Quarter) [closed]
https://physics.stackexchange.com/q/72610
Can someone unpack the origin of this horizontal force for me a bit?
I can see a torque about the center of mass from the static friction $ mR\Omega^2 r \sin \...
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Doubt regarding inertial and non-inertial frames of reference
Consider a body falling to the surface of a planet (through vacuum)
To the body, would it register itself as an inertial frame of reference while the planet's surface accelerates towards it, hence ...
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Why is friction between two blocks considered first (not with the ground) when analyzing motion under horizontal force? [duplicate]
Consider a classic mechanics setup:
A small block A of mass m is placed on top of a larger block B of mass M.
The system rests on a horizontal rough surface.
The coefficient of friction between all ...
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Conservation of mechanical energy in a vertical spring
Title:
Why does mechanical energy appear inconsistent when gravitational potential energy is zero at the bottom of a vertical spring?
Body:
I'm analyzing a vertical spring-mass system undergoing ...
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Why don’t we feel Earth’s orbital acceleration if it’s constantly changing direction? [duplicate]
If the earth has acceleration (that is, its direction of velocity is constantly changing, which means that the earth has acceleration) so why don't we feel the acceleration?
When we drive the car and ...
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(Rolling without slipping) Why is friction acting down the plane? [closed]
I'm quite stumpted on this question, What I've learned is that friction must be opposing the direction of motion so that it can produce a torque which allows the object to roll without slipping. ...
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Direction of friction acting on a car moving on a horizontal circular track with uniform speed
My teacher showed us this figure and asked us to tell the direction of friction acting on the car at the moment when car is crossing the x-axis. Car is moving in horizontal circular motion in x-y ...
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Question on derivation of hydrostatic equillibium condition
So the hydrostatic equillbirum condition that is $\frac{∂P}{∂r}=-ρg(r)$, where $P(r)$ is the static pressure at $r$ and $g(r)$ is the effective gravitational force at point $r$ and $ρ$ of the fluid [...
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8
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948
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Difference in weights between two submerged objects [duplicate]
Both the basketball and the medicine (steel) ball are the same size, which means they're displacing the same amount of water. That should mean the buoyant force is the same on both, right? But then ...
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Which applied force acts on car due to which friction comes in action?
We know that there's a frictional force that starts acting between a car and ground when the car has tendency to get relative velocity with respect to ground. So my question is that which applied ...
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Circular Motion: how can weight and friction act in the same direction without any opposing force?
Hi everyone, this question was on my (finished) exam recently. I am confused about how a component of weight and friction can both act in the same direction down the slope (as seen in the second ...
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