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Finding unknown mass with tension

  • Thread starter x__o
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  • #1
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Homework Statement



so my teacher assigned me a to find the mass of this key without a scale using strings at whatnot.


Homework Equations





The Attempt at a Solution


i tried setting up the system like this:

____ceiling_____
\ /
\/
O
|
[Key]

and i cant seem to find it because i cant find tension.

T2=mg and Ty=T1sinθ

2T1y=T2
 

Answers and Replies

  • #2
hage567
Homework Helper
1,509
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What about the x components of the tensions? You need to find both the x and components for both strings. I'm assuming there is two strings there.
 

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