A. Water
B. Air
C. Water and air
D. None of these
🧠 Explanation:
Swimmers reduce friction with water to streamline flow, enhancing speed. For physics students, this highlights fluid dynamics, making it a key topic for studying physics, sports science, and biomechanics. Streamlining boosts performance. Understanding this ensures knowledge of motion principles. It’s essential for analyzing physics, sports science, and engineering. Studying friction in swimming offers insights into how bodies move, crucial for physics, sports science, and biomechanics.
