All Questions
Tagged with relative-motion acceleration
28
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The mechanics of retention of velocity/acceleration when an object is dropped from a moving body
This might seem a stupid question but please help me out because I'm very confused.
We say that when an object is dropped from a moving body (moving with constant acceleration $a$) It has the ...
1
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2
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295
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A question regarding inertial reference frame
We define a non-inertial reference as a reference frame which is accelerating.
But the question is if it is the reference frame itself what is it accelerating with respect to?
For simplification ...
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6
answers
379
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How can a particle which is not moving have an acceleration?
Suppose a rod is rotating around a fixed point located at an extreme point of it and there are two points on it. One, somewhere in the middle and the other at the other extreme.Call them $A$ and $B$ ...
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How can you accelerate without moving?
I know this question has been asked in other forms, generally regarding the balance of forces. This time I want to focus on motion. I've got a laser accelerometer on my desk. It tells me that I'm ...
7
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1
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What is my acceleration in my own frame?
This is , I suppose not a good question , but I think I am missing something which confuses me in this question.
So my question is:
Velocity is relative. So suppose a car is moving at a speed $200 \;\...
2
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5
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Why was it difficult to walk in the same direction the train's acceleration, and easier the other way around?
The other day while I was walking in the same direction that the train was accelerating. Then I came across this question. Please if would answer it, I am very curious to know. But when I walked the ...
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2
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One dimensional motion - Why does a ball fall back in my hands when I throw it up in a moving bus? [duplicate]
Suppose you are moving in a bus and you throw a ball upwards. Why does it always land in your hand and does not fall behind you? The bus is moving with a uniform velocity in a straight direction.
Now ...
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1
answer
116
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Acceleration of log moving without slipping with/under a plank
So I have this image:
I know how to solve the accompanying physics problem once I have determined the relative accelerations of the logs and the plank. According to my physics textbook, the cm of ...
1
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1
answer
745
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Smooth collar sliding down smooth shaft [closed]
For part (a), we find that the acceleration of the collar is $6.94~\mathrm{m/s^2}$. In part (b), we say that the acceleration of B with respect to A is $6.94~\mathrm{m/s^2}$, which makes sense.
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2
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What is the relative acceleration of a projectile fired at in a low gravity vacuum?
This question is to end an old argument.
Given a (space) vehicle with an acceleration of X, and projectile with an acceleration of 2X (rocket, not bullet), what would the relative acceleration of the ...
1
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1
answer
416
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Why is speed/position relative but acceleration not? [duplicate]
I think i understand it now, if found this: link
I know that position and speed are relative. There is no such thing as universal coordinates. Then why is acceleration absolute? Is the 3th and 4th ...
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1
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513
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Relative acceleration with pullys
I have tried this question every way I can think but in the equation for particle $L$ $g$ cancels every time. Could someone show me how to do it correctly or tell me what I am doing wrong. Thanks,
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16
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7
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Is acceleration relative?
A while back in my Dynamics & Relativity lectures my lecturer mentioned that an object need not be accelerating relative to anything - he said it makes sense for an object to just be accelerating. ...