What Would the Perimeter of Each Foot Have to Be

Multiple Choice

What would the perimeter of each foot have to be to enable a standard man (70 kg) to stand on the water on both feet, held up by surface tension? (Note: Surface tension for water ó = 0.073 N/m.)

A) 9.3 × 10³ m
B) 4.7 × 10³ m
C) 9.6 × 10² m
D) 4.8 × 10² m