Stability analysis (Swedish circle method): If S is the arc length, L is the long chord, and R is the radius of the sliding circle, which expression correctly gives the perpendicular distance of the line of resultant cohesive force from the circle center?

Difficulty: Easy

• (S^2) / (8 * R)
• R - (L^2 + 4 * R^2)^0.5 / 2
• (S - L) / 2
• (S * L) / (8 * R)
• none of these