String hanging and oscillating

  • #1
LCSphysicist
634
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Homework Statement:
That's an easy problem. I will post below.
Relevant Equations:
All below.
1598030992318.png


I thought we could do the part a by two steps:

(Studying the motion along x {there is no})

1598031112807.png


and along y

1598031127013.png
(Here should be T + dT)******
1598031265020.png


But apparently the answer is: "
1598031307019.png
"
So i think if the answer is wrong or, if not, where i made a mistake?
 

Answers and Replies

  • #2
hutchphd
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They are the same aren't they?
 
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  • #3
LCSphysicist
634
153
They are the same aren't they?
Jesus TRUTH, just now i notice the notation, omg zzzzzzzzzzzzz
 

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