A Physics Kinematics Question about Acceleration

AI Thread Summary
The discussion centers on a physics kinematics question regarding the acceleration of two objects, A and B, at a specific moment, t1, based on their velocity-time graph. One participant believes that the acceleration of A is greater than that of B, supported by visual analysis of the graph, despite the lack of numerical data. However, a teacher argues that without exact values or functions, the relationship between the accelerations cannot be definitively established. The consensus among participants leans towards agreeing that A's acceleration is indeed larger at t1. Overall, the analysis emphasizes the importance of graphical interpretation in understanding acceleration in kinematics.
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Homework Statement


This is the v-t(velocity-time) graph of two moving objects,A and B :
attachment.php?attachmentid=20531&stc=1&d=1252830179.jpg

Please check whether the following statement is true or false(including wrong description).

At the moment t1, the acceleration of A is BIGGER than that of B.
PS: In this case,"a vector A is bigger than another one B" means ||A||>||B||.

Homework Equations




The Attempt at a Solution


I'm a Chinese senior high school student who is not good at English,so please don't mind mistakes of grammar.I am really trying my best to post this thread.:shy::shy:
I think this statement is right,but my teacher said that there's no given exact numbers or function expressions and we can't find the exact relationship between line A and line B,including their point of intersection.
My opinion is that we can find the answer from the graph obviously( considering a very short range covering the point t1, delta(v) of A is obviously bigger than that of B )

Thank in advance!
 

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I would agree with your conclusion, the magnitude of the acceleration of A is definitely larger than that of B (at t1).
 
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