Final answer:
The peak undrained shear strength of a tapered vane can be determined by dividing the applied force by the cross-sectional area of the vane.
Step-by-step explanation:
The peak undrained shear strength of a tapered vane can be determined using the equation S = F/A, where S is the shear modulus, F is the force applied perpendicular to the length of the vane, and A is the cross-sectional area of the vane. To find the peak undrained shear strength, you would substitute the given values for F and A into the equation and calculate the result.
Example:
Suppose a tapered vane has a force of 100 N applied perpendicular to its length and a cross-sectional area of 10 cm². To find the peak undrained shear strength, you would divide 100 N by 10 cm² to get a shear modulus of 10 N/cm².