1. Ntho e tsamaya ka sedikadikwe ka lebelo le sa fetoheng la di-rad/s tse 10. Fumana (a) Lebelo la angular kamora metsotsoana e 10 (b) Ho falla ha Angular kamora metsotsoana e 10.
Tse tsejoang:
Lebelo la angular (ω) =10 rad/s
Ho batloa:
(a) Lebelo la Angular (ω) kamora metsotsoana e 10.
(b) Sekhutlo (θ) kamora metsotsoana e 10
Tharollo:
(A) Lebelo la angular (ω) kamora metsotsoana e 10
Ntho e ka hare motsamao o chitja o tšoanang e le hore lebelo la angular le lule le tsitsitse, 10 rad/s.
(b) Ho falla ha Angle (θ)
Lebelo le sa fetoheng la angular 10 radians/motsotswana le bolela ntho e potolohileng 10 radians ka motsotsoana. Kamora metsotsoana e 10, ntho e potolohileng 10 x 10 radians = 100 radians.
2. Phatsa e tsamaya ka sedikadikwe ka lebelo le sa fetoheng la 10 m/s. Radius ya sedikadikwe = mithara e le 1. Fumana (a) Lebelo la phatsa ka mora metsotswana e 5 (b) Phatsa ho baleha kamora metsotsoana e 5 (c) Ho potlaka ha centripetal.
Tse tsejoang:
Radius ea selikalikoe (r) = 1 meter
Lebelo la karoloana (v) = 10 m/s
Tharollo:
(A) Lebelo la karoloana ka mor'a metsotsoana e 5
Motsamao oa ntho o ka har'a motsamao o chitja o tšoanang e le hore lebelo le lule le tsitsitse, 10 m/s.
(B) Ho falla ha karoloana ka mor'a metsotsoana e 5
Limithara tse 10 ka motsotsoana li bolela motsotsoana o mong le o mong, ho falla ha karoloana = limithara tse 10. Kamora metsotsoana e 5, ho falla ha karoloana = limithara tse 5 x 10 = limithara tse 50.
(C) Ho potlaka ha centripetal (ar)
ar = v2 / r = 102 / 1 = 100 / 1 = 100 m/s2
3. Bolo e hoketsweng pheletsong e 'ngoe ea thapo, e potoloha ka selikalikoe se nang le radius ea limithara tse 2 ka lebelo le sa fetoheng la 60 rpm. Fumana (a) boholo ba lebelo la angular kamora metsotsoana e 2 (b) ho falla ha angular kamora motsotso o le mong.
Tse tsejoang:
Radius ea selikalikoe (r) = limithara tse 2
Lebelo la Angular (ω) = 60 rpm = diphetoho tse 60 / motsotso o le 1
= Diphetoho tse 60 / Metsotsoana e 60 = Phetoho e le 1 / Motsotsoana = 2π mahlaseli / motsotsoana
= 2(3.14) radians / motsotsoana = 6.28 radians / motsotsoana
Tharollo:
(A) Lebelo la angular (ω) kamora metsotsoana e 2
Lebelo la angular ha le fetohe kahoo kamora metsotsoana e 2, lebelo la angular (ω) = 6.28 radians / motsotsoana
(B) Ho falla ha Angular (θ)
Lebelo la angular = phetohelo e le 'ngoe/motsotswana le bolela hore motsotsoana o mong le o mong, bolo e ba le phetoho e le 'ngoe. Kamora metsotsoana e 60, bolo e tsamaea ka makhetlo a 60.
Lebelo la angular = 6.28 radians/motsotswana le bolela hore motsotsoana o mong le o mong, bolo e tsamaya ka sekhutlo sa 6.28 radians. Kamora metsotsoana e 60, bolo e tsamaya ka 376.8 radians.
4. Lebili la baesekele le potoloha diphetoho tse 120 ka metsotswana e 60. Lebelo le nang le dikhutlo tse pedi ke lefe?
Tharollo:
(a) diphetoho ka motsotso (rpm)
Liphetoho tse 120 / metsotsoana e 60 = liphetoho tse 120 / motsotso o le 1 = liphetoho tse 120 / motsotso = 120 rpm
(B) likhato ka motsotsoana (o/ s)
Phetohelo e le 'ngoe = 360o, diphetoho tse 120 = 43200o
Liphetohelo tse 120 / metsotsoana e 60 = (120)(360o) / metsotsoana e 60 = 43200o / Metsotsoana e 60 = 720o/motsotsoana
(C) radians ka motsotsoana (rad/s)
Phetoho e le 'ngoe = li-radian tse 6.28
Diphetoho tse 120 / metsotsoana e 60 = (120)(6.28) di-radian / metsotsoana e 60 = di-radian tse 753.6 / metsotsoana e 60 = di-radian tse 12.56/motsotswana.
[ID ea sephutheloana sa wpdm='432′]
[ID ea sephutheloana sa wpdm='439′]
- Mathata a sampole a diyuniti tsa dikhutlo a fetolang ka ditharollo
- Mathata le litharollo tsa sampole ea ho falla ka mokhoa o otlolohileng le oa ho falla ka mokhoa o otlolohileng
- Mathata a sampole ea lebelo la angular le lebelo le otlolohileng ka litharollo
- Mathata a mohlala oa ho potlakisa ka mokhoa o otlolohileng le oa ho potlakisa ka litharollo
- Mehlala ea mathata a metsamao e chitja e tšoanang ka litharollo
- Mathata a sampole ea ho potlakisa centripetal ka litharollo
- Mathata a sampole ea metsamao e chitja e sa tšoanelang ka litharollo
