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Module 2. Physics
The centre of gravity of an aircraft is adjusted by two weights, 10 kg and 5 ckg plaed 4m and 2 m aft of the c of g. To what position must a 20 kg weight be added to balance the c of g?
•  2.5m.
•  4m.
•  2m.

AndreaFrasconi asking:
•  Why

Community comments: 3
redwalt
Posts: 2
25.03.2023 / 20:45
Because (10×4)+(5×2) = 20×2.5
redwalt
Posts: 2
25.03.2023 / 21:07
Actually it was (10×9.81×4)+(5×9.81×2) = 20×9.81×2.5 , but it works either way
mano
Posts: 3
11.04.2024 / 07:58
Weight arm momentum
10kg 4m 40
5kg 2m 10

Total aft 50 then
20kg 2.5m 50


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