All Questions
Tagged with terminology kinematics
87
questions
2
votes
2
answers
108
views
Constraint Equation and Equation of Motion
I was doing a question which was to find the number of generalized coordinates needed to describe a particle with the motion:
$x(t)=2a\sin(\omega t) $
$y(t)=a\cos(2\omega t)$
So I solved it and found ...
-1
votes
1
answer
148
views
What does instantaneous velocity mean? [duplicate]
What does instantaneous velocity mean?
on google it says "Instantaneous means something happens very quickly, in a single moment. It's similar to the meaning of "instant", but most ...
- 1
0
votes
3
answers
284
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Is Retardation and Deceleration the same thing? [closed]
Does, Deceleration always have to be Retardation? Or, can there be Deceleration without Retardation.
0
votes
1
answer
88
views
Is this motion rotation or curvelinear translation?
Arrow orbit around point C like graph show.
Is motion of arrow, rotation or curvelinear translation according to physics definition?
What is definition and types of translation and rotation?
I find ...
- 613
4
votes
2
answers
541
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Is there a relationship between the magnitude of the velocity and acceleration vector?
Given a path, how do the magnitude of the velocity and acceleration vector along the path correlate? I am confused due to the fact that the acceleration is the change of velocity over time and in ...
- 41
2
votes
1
answer
122
views
Is there any physical difference between a receding body and a moving body? [duplicate]
Edited version.
A body $A$ is receding at acceleration $\vec {a}$ with respect to a point $P$ because of the expansion of the universe.
Another body $B$ is accelerating at the rate of $\vec{a}$ with ...
user355398
1
vote
2
answers
395
views
Linearization of an expression
I'm doing a physics lab and I have a question that asks me to linearize the expression of time (it gives me the equation for time) in function of the mass.
I don't want any solution, just want to know ...
- 65
-1
votes
1
answer
61
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Is vibratory motion in straight line also pure translatory motion?
I think pure translatory motion is defined as change in position of the object such that the velocity of each particle of the object is parallel and in the same direction to each other and is of the ...
- 31
2
votes
2
answers
80
views
Do moving objects "contain" kinetic energy? [closed]
We know that kinetic energy is relative to the reference frame. In a frame moving with the object, the K.E. will be zero. So is it misleading, or completely wrong, to say that a moving object "...
- 141
-4
votes
2
answers
743
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What is a constant vector?
If the acceleration vector and velocity vector are antiparallel and constant vectors(?) what is the type of motion of the particle/body?
Also, what are constant vectors?
- 69
0
votes
1
answer
369
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What is the difference between constant and uniform acceleration? [closed]
What is the difference between constant and uniform acceleration ?
- 19
0
votes
2
answers
190
views
Scalar term for acceleration [duplicate]
Consider the following definitions:
Distance is the magnitude of the displacement
Speed is the magnitude of the velocity
X is the magnitude of the acceleration
Is ...
- 115
1
vote
1
answer
69
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What does "$L$ seconds" mean in $\lambda = 0.225L \ \rm s$? [closed]
I was reading a paper, (Iannou et Chien 1993) and they were trying to determine the exact amount of reaction time on the California safety spacing rule, and the result was:
$ \lambda = 0.225 L\ \rm s$
...
- 11
-2
votes
2
answers
1k
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What is closing speed?
what is closing speed? the only information google was able to give me, is that closing speed is when a car is approaching another car both at 30m/s the closing speed is 60m/s, so what exactly is ...
- 117
0
votes
4
answers
152
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Is this $x$-$t$ graph possible? Is the distance decreasing over time in this graph?
I have read in a Book:
But I think it is possible as a Negative Velocity and Positive Acceleration:
Reference:
SL Arora Physics Class 11, Pg No. 152.
