Boima le boima - mathata le litharollo

Mathata a rarollotsoeng melaong ea Newton ea motsamao - Boima, le boima

1. Boima ba boima ba 1 kg holim'a Lefatše ke… g = 9.8 m/s ²

Tse tsejoang:

Boima (m) = 1 kg

Ho potlaka ho bakoang ke matla a khoheli holim'a Lefatše (g) = 9.8 m/s ²

Ho batloa: boima (w)

Tharollo:

w = mg

m = boima (Yuniti ea SI ea boima ke kilogram, kg)

g = ho potlaka ka lebaka la matla a khoheli (Yuniti ea SI ea g ke m/s ² )

w = boima (Yuniti ea SI ea w ke kg m/s ² kapa Newton)

Boima ba 'mele:

w = (1 kg)(9.8 m/s ² ) = 9.8 kg m/s ² = 9.8 Li-Newton

2.

(a) Thala matla a khoheli (boima) a sebetsang nthong ha ntho e phomotse tafoleng, joalo ka ha ho bontšitsoe setšoantšong sa (a).

(b) Thala matla a khoheli (boima) le likarolo tsa ona tse sebetsang nthong e thellang fatše sefofaneng se sekametseng , joalo ka ha ho bontšitsoe setšoantšong (b)

tharollo

Tsela eo boima bo tsamaeang ka yona e theohela tlase bohareng ba Lefatshe.

w _x = karolo e rapameng ea boima le w _y = karolo e otlolohileng ea boima

3. Boima ba lebokose ke 1 kg mme lebelo ka lebaka la matla a khoheli ke 9.8 m/s ^2. Fumana (a) boima (b) karolo e rapameng le karolo e otlolohileng ea boima.

tharollo

Boima : w = mg = (1 kg)(9.8 m/s ² ) = 9.8 kg m/s ² = 9.8 Newtons

Karolo e rapameng ea boima:

w _x = w sin 30 ^o = (9,8 N)(0,5) = 4.9 Newton

Karolo e otlolohileng ea boima:

w _y = w cos 30 ^o = (9.8 N)(0.5√3) = 4.9√3 Li-Newton

[ID ea sephutheloana sa wpdm='458′]

1. Boima le boima
2. Matla a tloaelehileng
3. Molao oa bobeli oa Newton oa ho sisinyeha
4. Matla a khohlano
5. Ho sisinyeha holim'a bokaholimo bo otlolohileng ntle le matla a khohlano
6. Motsamao oa 'mele e 'meli e nang le lebelo le tšoanang holim'a bokaholimo bo bataletseng bo bataletseng ka matla a khohlano
7. Ho sisinyeha ha sefofane se sekametseng ntle le matla a khohlano
8. Motsamao sefofaneng se sekametseng ka thata ka matla a khohlano
9. Motsamao ka lifting
10. Motsamao oa 'mele o hokahantsoe ka lithapo le li-pulleys
11. 'Mele e 'meli e nang le boholo bo tšoanang ba ho potlaka
12. Ho potoloha mothapo o bataletseng - matla a motsamao o chitja
13. Ho potoloha mothapo o kobehileng - matla a motsamao o chitja
14. Motsamao o tšoanang ka selikalikoe se otlolohileng
15. Matla a bohareng a motsamao o chitja o tšoanang