Student sliding bag along floor in elevator

In summary, the conversation is about the speaker's experience at a music festival. They talk about the atmosphere, the performances, and their favorite artists. They also mention the high prices and the long lines for food and drinks. Overall, the speaker enjoyed the festival but suggests planning ahead for a better experience.
  • #1
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Homework Statement
Pls see below
Relevant Equations
Pls see below
For this problem,
1676877869180.png

The solution is,
1676877943337.png

However, is the reason why they don't do ##-0.5a_xt^2## because the negative of the acceleration has already taken care of itself?

Many thanks!
 
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  • #2
The answer seems to make
[tex]a_x=-\alpha_k (g+a)<0[/tex]
negative. You can make it positve one with your setting of ##-0.5a_xt^2##.
 
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  • #3
anuttarasammyak said:
The answer seems to make
[tex]a_x=-\alpha_k (g+a)<0[/tex]
negative. You can make it positve one with your setting of ##-0.5a_xt^2##.
Than you for your reply @anuttarasammyak !
 
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