Acceleration vs. time graphs | One-dimensional motion | Physics | Khan Academy

David explains how to read an acceleration vs. time graph. He then shows how the area under the curve gives the change in velocity and does a few examples.

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[gilbertdavie]

love your work, reallly helping me out thanks again

[sarujanrupan]

You know this is a hard graph when Khan Academy comes first in the search list

[ok-vvvo]

How do you calculate distance from a acceleration-time graph?

[AbelMinar]

Thank you! This really helps alot for my exams lol

[abbhijitsingh]

For 6:20 Him explaining the why triangles need 1/2 in front is because if you mulitply base and height you would get the points (4, 0) (4, 2) (6, 0) (6, 2) but the line cuts half of the rectangle is like a rectangle has two triangles you know so when you cut them half you'll get the triangle that's why the 1/2 is in the formula of finding are of a triangle ... Whatever he said was right but I'm just giving another method that is true too...

[USAranger]

@7:20, how did you get V=1 m/sec when T=0?

[eliastamerat]

Love your work and good one on the jerk😅😅😅😅

[opufy]

I dont get the part of: V at 0 = 1 7:10

[hussainahmedsyed]

which software is used in making this video

[mulimotola]

Thanks that was very interesting! Just make sure to use vector notation where needed

[aehnsy]

Does the initial velocity always mean 1? I thought its supposed to be zero

[WarddaynandKoloni]

Sir can we make v/t graph from a/t then find v max

[dulcesanchez]

Can you do more videos of acceleration and the different graphs

[zhondiwembewe]

An electric train moves from rest with a uniform acceleration of 1.5m/s>2 for the first 10s and continues accelerating at 0.5m/s>2 for a further 20s.it continues at constant speed for 90s and finally takes 30s to decelerate uniformly to rest.Draw a graph of speed against time for the journey.


sir, how do i draw that graph?

[nadiaafrin]

Sir can u please explain why the velocity at 6 is greater than velocity at 4 sec?..from the graph we can see the object's acceleration is decreasing r8?..it means the final velocity must be lessened by time..but why in here the velocity at 6 is greater than at 4 sec?..it doesn't approve the graph then in my opinion...plz point out my mistake where I'm misunderstanding..

[Gamer-pvfv]

Why is the change in velocity at 0 = 1
Nvm, he assigned a value
Great video though

[kyndall]

also to help, if you picture it, the triangle is just half of a square and the square is just half of a rectangle. so if you take the acceleration of the rectangle (8m/s^2) and divide that by 2, you get the acceleration of the square. and again, since the triangle is just half of the square, you can divide the acceleration of the square (4m/s^2) and divide that by 2 again. giving you 2m/s^2. so basically divide the rectangle acceleration by 4 since 4 triangles make up a rectangle.

[KingQAT]

how do we find the Avg acceleration from the acceleration time graph

[omvithalkar]

So the people who are referred to as jerks are changing their acceleration with time and that annoys other people

[jannatulnyeemratul]

Sir, I would be very grateful if you answer this question: How is that a object accelerating at a speed of 9.8m/s but just covering 4.9m?Hope to get a big explanation.

I am having a lot of trouble with this questions.So please kindly reply, Sir.