Two samples of a soil were tested in a triaxial machine. The all-round pressure maintained for the first was 2.0 kg/cm2 and failure occurred at additional axial stress of 7.7 kg/cm2, while for the second, these values were 5.0 kg/cm2 and 13.7 kg/cm2 respectively. Find c (kg/cm2) and ϕ (in degree) of the soil.
1
0.534 and 30
2
0.534 and 60
3
1.068 and 30
4
1.068 and 60
5
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