Boitsebiso ba Angular Momentum
Ntho e etsang motsamao o otlolohileng e na le matla a ka baloang ho sebelisoa foromo:
p = mv
Lintlha :
p = momentum (yuniti ea machaba ke kilogram meter / motsotswana, e khutsufalitsoeng kg m/s)
m = boima (yuniti ea machaba ke kilogram, e khutsufalitsoeng kg)
v = lebelo (yuniti ea machaba ke mithara / motsotsoana, e khutsufalitsoeng m/s)
Bongata ba 'mele motsamaong oa potoloho bo ts'oanang le boima (m) motsamaong o otlolohileng ke motsotso oa ho se inertia (I). Bongata ba 'mele motsamaong o potolohang o ts'oanang le lebelo (v) motsamaong o otlolohileng ke lebelo la angularKahoo, ntho e potolohang e na le motsamao o ka baloang ho sebelisoa foromo:
Mohlala oa mathata
1. Karoloana e na le motsotso oa inertia oa 2 kg m2 e potoloha ka lebelo la angular la 2 rad/s. Fumana momentum ya angular ya karoloana!
Puisano
Hoa tsebahala :
Nako ea ho se sebetse ha karoloana = 2 kg m2
Lebelo la Angular = 2 rad/s
E botsitsoe : motsamao o potolohang oa karoloana!
Jawab :
Foromo lebelo la angular :
2. Karoloana e boima ba 1 kg e potoloha ka lebelo le kgutlotharo la 2 rad/s. Radius ya tsela ya karoloana ke dimithara tse 2. Fumana motsamao o kgutlotharo wa karoloana!
Puisano
Hoa tsebahala hore:
Boima ba karoloana (m) = 1 kg
Lebelo la Angular la karoloana = 2 rad/s
Radius ea tsela ea likaroloana (r) = limithara tse 2
E botsitsweng: Motsamao o mokgutshwane wa karoloana?
Karabo:
3. Karoloana e boima ba digrama tse 0,5 e sebetsa motsamao o chitja ka lebelo le sa fetoheng la angular la 2 rad s-1Haeba radius ea tsela ea karoloana e le 10 cm, joale lebelo la angular la karoloana ke...
A. 1 × 10-5 kg m2 /s
B. 2 × 10-5 kg m2 /s
C. 3 × 10-5 kg m2 /s
D. 4 × 10-5 kg m2 /s
E. 5 × 10-5 kg m2 /s
Puisano:
Motsotso o Angular likaroloana:
L = (0,5 x 10)-5 kg m2)(2 rad/s) = 1 x 10-5 kg m2/s
