Massasi 3 kg bo'lgan jism vertikal yo'nalgan 70 N kuch yordamida 2 m balandlikka ko'tarildi. Kuchning bajargan ishi necha joulga teng?

  1. 140
  2. 150
  3. 160
  4. 170

📝 Detailed explanation

Kuchning bajargan ishi:
A = F·h = 70·2 = 140 J.
Eslatma: Bu yerda kuch berilgan (70 N), shuning uchun to'g'ridan-to'g'ri A = F·h formulasi qo'llaniladi.
Javob: A) 140.
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