Mehlala e 5 ea modulus ea Young ea mathata a khatello ea maikutlo le ho tenyetseha
1. Thapo ea naelone ea bophara ba 2 mm e huloa ka matla a li-Newton tse 100. Fumana khatello ea thapo!
Puisano
Hoa tsebahala :
Matla a ho thapolla (F) = 100 Newton
Bophara ba thapo (d) = 2 mm = 0,002 metres
Radius ea thapo (r) = 1 mm = 0,001 meter
E botsitsoe : Khatello ea thapo
Jawab :
Sebaka se tšekaletseng sa thapo :
Khatello ea thapo :
2. Thapo e bolelele ba pele ba 100 cm e hulwa ho fihlela thapo e eketseha ka bolelele ka 2 mm. Fumana tsitsipano ea khoele!
Puisano
Hoa tsebahala :
E botsitsoe : Khatello ea likhoele
Jawab :
Khatello ea khoele :
3. Thapo e bophara ba 4 mm le bolelele ba pele ba limithara tse 2 e huloa ka matla a li-Newton tse 200 ho fihlela bolelele ba thapo bo fetoha ho limithara tse 2,02. Bala (a) khatello khoeleng (b) khatello khoeleng (c) Modulus ea Young ea ho tenyetseha!
Puisano
Hoa tsebahala :
E botsitsoe : (a) Kgatelelo ya maikutlo (b) Kgatelelo ya maikutlo (c) Modulus ya Young
Jawab :
(A) Setegangan
(b) Khatello
(c) Modulus ea Young
4. Thapo ea naelone e bophara ba 1 cm le bolelele ba pele ba limithara tse 2 e na le ho huloa ha li-Newton tse 200. Bala keketseho ea bolelele ba khoele! Naelone ea E = 5 x 109 N / limithara2
Puisano
Hoa tsebahala :
E botsitsoe : Eketsa bolelele
Jawab :
Foromo ea Modulus ea Young :
Ho eketsa bolelele ba nylon :
Keketseho ea bolelele ba thapo ea naelone = 0,26 millimeters
5. Pilara ea konkreite e na le bolelele ba limithara tse 5 le sebaka sa karolo e tšekaletseng sa limithara tse 33 e tshehetsa mojaro wa 30.000 kg. Bala (a) kgatello e ka hara qubu (b) kgatello e ka hara qubu (c) phetoho bophahamong ba qubu! Sebelisa g = 10 m/s2Modulus ea Young ea ho tenyetseha ha konkreite = 20 x 109 N / limithara2
Puisano
Hoa tsebahala :
E botsitsoe : (a) Kgatelelo ya qubu (b) Kgatelelo ya qubu (c) Phetoho ya bophahamo ba qubu!
Jawab :
(A) Khatello ea lipalo
(b) Kgatelelo ya palo
(c) Liphetoho bophahamong ba palo
Palo e se e le kgutshwane ka dimilimithara tse 0,025.
