physics

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25 Replies
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@Gyro Gearloose
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+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.
Opt
Opt10mo ago
Where's the graph?
stormycloud
stormycloudOP10mo ago
There is no graph, the graph is like part of the solution, that is why I got confused
Deleted User
Deleted User10mo ago
it would matter right?
Opt
Opt10mo ago
No, the graph is given according to the question.
Deleted User
Deleted User10mo ago
yes
SirLancelotDuLac
SirLancelotDuLac10mo ago
Basic premise of the solution is: i.) Area of a-t graph gives change in velocity ii.) If the function of acceleration is a=mx+c, then, $vdv=(mx+c)dx$, hence integrating, $v^{2}=mx^{2}+cx$
TeXit
TeXit10mo ago
SirLancelotDuLac
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stormycloud
stormycloudOP10mo ago
No description
SirLancelotDuLac
SirLancelotDuLac10mo ago
So if you know the velocity at time t (easily deduced from graph) we can find position
stormycloud
stormycloudOP10mo ago
Oh ok so the 6,7 on y axis is part of the question right?
SirLancelotDuLac
SirLancelotDuLac10mo ago
Oh sorry, we have to find velocity...
Deleted User
Deleted User10mo ago
the question says linear variation of a with time i think, not displacement along x axis...
SirLancelotDuLac
SirLancelotDuLac10mo ago
Yep then the first point, just find area of a-t graph
Deleted User
Deleted User10mo ago
yeah the acceleration time graph, even if specified as linear, would be unique for a case ☠️
SirLancelotDuLac
SirLancelotDuLac10mo ago
Yes, that is what the first point covers.
stormycloud
stormycloudOP10mo ago
Thank god I was like , how did it magically appear
Deleted User
Deleted User10mo ago
which referance material is it from?
stormycloud
stormycloudOP10mo ago
Cengage How r they finding the area here, sry if this kinda dum
SirLancelotDuLac
SirLancelotDuLac10mo ago
Area of trapezoid
stormycloud
stormycloudOP10mo ago
Oh ok thankyou so much I forgot that existed Got it, ty again
SirLancelotDuLac
SirLancelotDuLac10mo ago
Welcome mate.
stormycloud
stormycloudOP10mo ago
+solved @SirLancelotDuLac @Deleted User
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