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Q: Which of the following is not a surface force?
  • A. Frictional force
  • B. Viscous force
  • C. Traction
  • D. Centrifugal force
Correct Answer: Option D - Centrifugal force is not a surface force. • Surface force like Frictional force, Viscous force and Traction.
D. Centrifugal force is not a surface force. • Surface force like Frictional force, Viscous force and Traction.

Explanations:

Centrifugal force is not a surface force. • Surface force like Frictional force, Viscous force and Traction.