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Why does walking take more energy than cycling?

Sunday, May 15, 2022, 19:11 (GMT+7)

The following Physics knowledge about motion helps you to explain the phenomena encountered in life.

Question 1: Why do helicopters or dono (vertical take-off) always have an even number of wing systems: 2, 4, 6…?

A. Keep the helicopter and dono from spinning

B. To make navigation easier

C. To make it easier to determine the center of symmetry when designing

Le Ngoc Minh
Physics Lecturer, Tank Officer School

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