All Questions
18 questions
2
votes
1
answer
3k
views
Integrating an acceleration time graph gives you?
If I have a graph of Acceleration against time. Can I integrate this curve in order to find velocity and displacement?
2
votes
1
answer
1k
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How to get time from equation of linear uniformly accelerated motion? [closed]
I have had a problem solving this equation for time (from Linear Uniformly Accelerated Motion (LUAM)):
$$ s= v_0t + \tfrac{1}{2}at^2 $$
I'll appreciate if someone could provide me some step-by-step ...
- 123
1
vote
3
answers
2k
views
How can we understand acceleration direction (positive or negative)?
I am studying motion in one dimension. I am having hard time to determine acceleration either positive or negative. How can I understand this?
For example in this question I thought accelaration was ...
- 113
1
vote
1
answer
4k
views
Distance directly proportional to time squared
I am quite confused with the last bit, "acceleration is uniform".
I have the graph with x-axis being distance and y-axis as time squared.
I'll talk about how time squared is directly proportional to ...
- 23
1
vote
2
answers
3k
views
Velocity time graph analysis: what does a concave downward $v$-$t$ curve mean?
This is a screenshot from the lecture about the analysis of various velocity-time graphs I was watching.
I understand that
the concavity of velocity-time graph will tell about the
increasing or ...
- 646
1
vote
1
answer
185
views
In a uniformly accelerated motion experiment, the acceleration can be attained from $V_{ave}$ vs. $t/2$ and $x$ vs. $t^2$ graph. How is this possible?
Specifically, in the experiment, we had to release a glider from an inclined plane (that had an angle of inclination of 10 degrees). We had to calculate the time it reaches the final position. We had ...
- 13
1
vote
1
answer
630
views
Travel time for accelerating object [closed]
I have an object which starts at velocity = 0. Accelerates to a known max speed and continues thereon at constant velocity (max speed).
My problem: How long does it take to reach a known ...
- 111
0
votes
2
answers
246
views
Why are these SUVAT equations true?
\begin{align}
v&=u+at\\
s&=ut+\frac{1}{2}at^2\\
v^2&=u^2+2as\\
s&=\frac{(v+u)t}{2}
\end{align}
I have just started with learning acceleration in school and I don't really understand ...
- 119
0
votes
3
answers
67
views
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
0
votes
2
answers
3k
views
What would the position vs. time graph look like if the velocity vs. time graph was a curve?
In my physics class we are learning about velocity vs. time graphs and position vs. time graphs for an object. We have learned that if the object is moving with constant velocity (this would be a ...
- 129
0
votes
1
answer
3k
views
How to determine the correct time using quadratic functions if there are multiple "correct" roots exist in a 3D system? [closed]
Time can be calculated from a modified kinematics quadratic formula using the initial velocity, displacement, and acceleration. However, the acceleration vector isn't limited to 1 axis.
When applying ...
- 101
0
votes
1
answer
97
views
Determine time over known distance, constant acceleration and starting speed [closed]
Problem: I have an object covering a specific distance (say 100m) at a starting speed (say 10m/s) and a constant acceleration of 1m/s/s.
Which equation can I use determine how long it will take the ...
- 103
0
votes
1
answer
16k
views
Finding deceleration and velocity using distance and time
A car is moving down a street with no brakes or gas. The car is slowing due to wind resistance and the effect of friction. The road is flat and straight. The only data I have are timings taken at 100m ...
- 3
0
votes
1
answer
54
views
What would be the right equation to use?
I am working on and needed assistance with the Moving Man Simulation. If I wanted to illustrate The Man at an initial starting point/position of $+1$, with a Velocity of $-2$, what equation could I ...
- 111
0
votes
1
answer
352
views
Acceleration function of position and time
I have an acceleration function in python with position and time parameters and returns the acceleration value.
I need the end velocity at a position ,start velocity is zero.
how to calculate this ...
0
votes
1
answer
31
views
How much time does it take bodies to change their current state of motion?
Correct me if I’m wrong in any of this
bodies with mass tend to resist any change in their state of motion .. if they are at rest .. they resist motion and if they are in motion they resist being put ...
- 3
0
votes
1
answer
66
views
Average Velocity Question (isolation?)
So there is this question i've been having trouble with for the past hour. It involved a child going down a ramp on a sled at and angle theta with a total system of mass. accelerates down a hill of ...
0
votes
1
answer
2k
views
Finding car's average acceleration? [closed]
I am trying to calculate the car's average acceleration in (m/s^2) between 0 and 2.1 s. I need to express this answer using two significant figures, I have been trying the following to get it and it ...
- 111