Question 202283
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if your car goes from 14 to 71 meters in 3 seconds, what is your acceleration?
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From the  Physics point of view,  as well as from the  Math point of view,
this problem is posed in  EXTREMELY  illiterate way.


Indeed, &nbsp;if &nbsp;14 &nbsp;meters and &nbsp;71 &nbsp;meter are &nbsp;<U>positions</U> &nbsp;of the points on the number line
(as the dimension of &nbsp;" meter " &nbsp;points to it), &nbsp;then velocity should be given at the start or at the finish 
- only then the problem is posed properly.


But no velocity is given in the problem.


If &nbsp;14 &nbsp;meters and &nbsp;71 &nbsp;meter relate to velocity/speed, &nbsp;then the dimension  should be &nbsp;" meters per second "
or something like this. &nbsp;But, &nbsp;again, &nbsp;this is not a case.


Therefore, &nbsp;the collection of words in this post is soup of words, &nbsp;or compote - on your choice.


But not a &nbsp;Math or a &nbsp;Physics problem.


Gibberish, &nbsp;in simple words.


Therefore, &nbsp;" solution " &nbsp;by &nbsp;@Theo makes no sense, &nbsp;so you better ignore it, &nbsp;for the peace in your mind.


He allegedly &nbsp;" determined " &nbsp;the acceleration, &nbsp;but even his dimensions 
for acceleration are incorrect, &nbsp;so his writing is free composition with no sense.


Actually, @Theo calculated the average speed of the uniform move.
It assumes that the car moves uniformly with zero acceleration.
So, @Theo mixed everything in his post.


I may be speaking too harshly, &nbsp;but in my opinion it is better to tell the truth than to deceive.