# I need help please?

#### XBOX999

1. The problem statement, all variables and given/known data

Masses and dimension

M (Kg) 1.8152 + 0.0001
-
M bar 1.8627+ 0.0001
-
h (m) 0.490+ 0.005
-
l (m) 0.604+ 0.005
-
b (m) 0.02000+ 0.00005
-

Oscillations

Trial T ( for 50 oscillations) T0 ( for 25 oscillations) T bar ( for 25 oscillations)
1
---------- 80.44+1.5 s
----------------------------- 154.37+1.5 s
------------------------------------------------------------------------------------------------------------------ 103.65+1.5 s
-
2
---------- 79.99+1.5 s
------------------------------ 148.18+1.5 s
------------------------------------------------------------------------------------------------------------------ 104.00+1.5 s
-
3
---------- 81.93+1.5 s
------------------------------------ ------ 154.06+1.5 s
---------------------------------------------------------------------------------------------------------- 96.25+1.5 s
-
Average
---------- 80.74+ 1.5 s
------------------------------------ 152.87+ 1.5 s
------------------------------------------------------------------------------------------------------------------ 101.3+ 1.5 s
-

g = ( 9.27 + ????? ) m/ s2

2. Relevant equations

Hello, My questions is Derive the general uncertanity formula of "g" ( in tearms of measurable quantities)
you need these equations
T= 2 π (square root of ( I/Mgh)
g= 4 ( π square) ( I/Mh) T square
I= I0 + M (h square)
I0= I bar ( T0/Tbar)square
Ibar= (M bar/ 12) ( L square+ b square)

Last edited:
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