"SpaceX" kompaniyasining "Falcon 1" nomli kosmik raketasi yerdan ko'tarilish paytida 90 m/s² tezlanish oladi. Raketa ichidagi 80 kg massali uchuvchining og'irligi qancha (kN) bo'ladi? Erkin tushish tezlanishi 10 m/s² ga teng.

  1. 0,8
  2. 8
  3. 800
  4. 7,2

📝 Detailed explanation

Raketa tezlanishi a = 90 m/s² yuqoriga.
Uchuvchiga ta'sir etuvchi quyi pol reaksiya kuchi: N = m(g + a) = 80·(10 + 90) = 80·100 = 8000 N = 8 kN.
"Og'irlik" deganda bu yerda uchuvchining poldagi bosim kuchi (ko'rinma og'irlik) tushuniladi.
Javob: 8 kN.
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