Reja: Ishqalanish kuchi, Tinchlikdagi ishqalanish, Sirpanish ishqalanish, Dumalanish ishqalanish. Tayanch so`zlar: ishqalanish kuchi, tinchlikdagi ishqalanish, reaksiya kuchi, sirpanish ishqalanish, sirpanish ishqalanish kuchi, sirpanish ishqalanish koeffitsiyenti, dumalanish ishqalanish, dumalanish ishqalanish kuchi, dumalanish ishqalanish koeffitsiyenti.