All Questions
11 questions
0
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1
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Is average velocity equal to displacement per unit time OR displacement divided by time?
I had looked for the definition of average velocity in books like Resnick Halliday, Tipler ' Sears zemansky but no book writes average velocity as displacement per unit time although in these books ...
- 1,395
0
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4
answers
186
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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.
0
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3
answers
67
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Different equation is given for "position"
$$s=ut+\frac{1}{2}at^2$$
Assuming, $u=0$
$$s=\frac{1}{2}at^2$$
$$a=\frac{2s}{t^2}$$
So I got a function for acceleration.
$$v=u+at$$
$$v=\frac{2s}{t} \tag{1}$$
In reality I know that $s=vt$ when ...
- 91
-1
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3
answers
352
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What does this displacement time graph say about velocity?
I have a debate with my sister, who says that velocity should be constant because velocity is $\dfrac{d}{t}$ and there certainly is some non-zero displacement. I say velocity is the rate of change of ...
- 1,200
11
votes
9
answers
1k
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Is velocity real?
This sounds like a stupid question but I am do not grasp physics concepts easily. "Velocity" is just the change in displacement over the change in time. I can see displacement and time as ...
- 127
1
vote
1
answer
57
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How to calculate the components of the displacement of unit magnitude of an accelerating particle in 2D? [closed]
A particle is moving in 2D having a constant acceleration $ \vec a $.
Given initial velocity $ \vec u $, after time $ t $ the magnitude of its displacement $ \vec S $ is 1.
I need to calculate $ S_x $...
- 227
7
votes
7
answers
13k
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What is the difference between position, displacement, and distance traveled?
Suppose the question is somewhat like this:
If $v=8-4t$ and the position at time $t= 0\ \rm s$ is $2\ \rm m$, find the distance traveled, displacement, and final position at $t=3\...
- 75
-5
votes
3
answers
550
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WHY did physicist defined velocity as displacement divided by time, why not displacement * time? [closed]
V=S/T. As per my knowledge i think ratio as division and it don't give any meaning like this much displacement in this much time. So i think physicists only used division as notion for velocity. But ...
- 29
1
vote
1
answer
81
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Doubt in this displacement-time graph [closed]
According to a book, this is a graph of "a ball resting on a smooth floor is kicked which rebounds from a wall with reduced speed. It then moves to the opposite wall, which stops it."
My Question ...
- 179
-1
votes
1
answer
802
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Displacement inside the moving Object
Suppose say a person is standing over the moving bike and he jumps while bike is moving, bike will move forward & person will land in same point at which he jumped, relative to earth position (...
- 109
8
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2
answers
72k
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Area under a displacement graph
If the area under an acceleration-time graph denotes velocity and the area under a velocity-time graph denotes displacement, what exactly does the area under a displacement-time graph denote?
- 183