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  • Publicado : 14 de marzo de 2012
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Tabla de datos y resultados:

Y/cm | Masa gr | Acm2 | Icm4 | hcg cm | hcp Cm | Zcm | W N | FR N | FRT N | Pprom Pa | hcp -hcg cm |
16 | 473.5 | 75 | 625 | 11 |11.75 | 15.75 | 4.65 | 8.12 | 8.1 | 1080 | 0.75 |
15 | 432.5 | 75 | 625 | 10 | 10.83 | 15.83 | 4.24 | 7.36 | 7.36 | 981.33 | 0.83 |
13 | 349.5 | 75 | 625 | 8 | 9.04 | 16.04 | 3.43 | 5.88 | 5.88 |784 | 1.04 |
11 | 265.5 | 75 | 625 | 6 | 7.39 | 16.39 | 2.60 | 4.35 | 4.41 | 580 | 1.39 |
10 | 226.5 | 75 | 625 | 5 | 6.67 | 16.67 | 2.22 | 3.66 | 3.67 | 489.33 | 1.67 |
9 | 187.5 | 67.5 | 455.63| 4.5 | 6 | 17 | 1.84 | 2.98 | 2.98 | 441.48 | 1.5 |
7 | 118.5 | 52.5 | 214.38 | 3.5 | 4.66 | 17.66 | 1.16 | 1.81 | 1.80 | 344.76 | 1.16 |
5 | 64.5 | 37.5 | 78.13 | 2.5 | 3.33 | 18.33 | 0.63 |0.94 | 0.92 | 250.66 | 0.83 |
3 | 23 | 22.5 | 16.88 | 1.5 | 2 | 19 | 0.23 | 0.33 | 0.33 | 146.66 | 0.5 |

g=981cms2 a=27.5 cm b=7.5 cm d=e=10 cm
1 Dina=1gr*cm/s2 =10-5 N γH2O=9810 N/m3

Cálculos:
10 ≤y ≤16 :

Formulas: A=b*d hcg=y-d2 I=b*d312hcp -hcg=Isen2∅Ahcg z=d+e-y+hcp W=m*g

hcp= IA*hcg+hcg

M0=0FRT=hcgAγH2O Pprom=FRA
W*a-FR*Z=0
FR=W*aZ



Para 16cm:

A= (7.5cm)(10cm)=75 cm2hcg=16cm-5cm=11cm
I=7.5cm(10cm)312=625cm4
hcp=625cm475cm211cm+11cm=11.75cm
Z=20cm-16cm+11.75cm=15.75cm
W=0.4735Kg9.81ms2=4.65 N
FR=4.65N(27.5cm)(15.75cm)=8.12 N
FRT=0.11m0.0075cm29810Nm3=8.1 N
Pprom=(8.1N)(0.0075 m2)=1080 Pa

Para 15 cm:

A= (7.5cm)(10cm)=75 cm2
hcg=15cm-5cm=10cm
I=7.5cm(10cm)312=625cm4
hcp=625cm475cm210cm+10cm=10.83cm
Z=20cm-15cm+10.83cm=15.83cm
W=0.4325Kg9.81ms2=4.24 N...
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