Amandla adonsela phansi Isisindo - Izinkinga Nezixazululo

5 Amandla adonsela phansi Isisindo - Izinkinga Nezixazululo

1. Iyini amandla adonsela phansi asebenza entweni ebusweni boMhlaba? Isisindo somhlaba = 5.98 x 10 ²⁴ kg, isisindo sento = 1000 kg, irediyasi yoMhlaba ingu-6.38 x 10 ⁶ m.

Kwaziwa:

Isisindo somhlaba (m _E ) = 5.98 x 10 ²⁴ kg

Isisindo sento (mo ₎ = 1000 kg

Irediyasi yoMhlaba (r _E ) = 6.38 x 10 ⁶ m

I-Universal constant (G) = 6.67 x 10 ^-11 N m ² / kg ²

Ukusheshisa ngenxa yamandla adonsela phansi (g) = 9.8 m/s ²

Okufunwayo: Amandla Adonsela Phansi

Isixazululo:

w = isisindo, F = amandla, G = okungaguquki kwendawo yonke, m _E = isisindo soMhlaba , m _o = isisindo sento , r = ibanga eliphakathi kwesikhungo soMhlaba nento.

Into iphezu koMhlaba, ngakho-ke i-r = i -radius yoMhlaba

Isisindo sento ( umthetho wesibili wokunyakaza kaNewton ):

w = mg

w = (1000 kg)(9.8 m/s ² )

w = 9800 N

2. Yimaphi amandla adonsela phansi asebenza entweni engamamitha ayi-10,000 ngaphezu kobuso boMhlaba? Isisindo somhlaba = 5.98 x 10 ²⁴ kg, isisindo sento = 1000 kg, irediyasi yoMhlaba ingu-6.38 x 10 ⁶ m.

Isixazululo:

3. Isisindo sendizamkhathi singu-w. Uma u-D = ububanzi boMhlaba, thola isisindo sendizamkhathi uma indizamkhathi ikuma-2D ngaphezu kobuso boMhlaba.

Kwaziwa:

D = Ububanzi bomhlaba,

R = irediyasi yoMhlaba

1 D = 2 R, 2 D = 4 R

Okufunwayo: isisindo sendizamkhathi ku-2D ngaphezu kobuso boMhlaba?

Isixazululo:

4. Isilinganiso sobuningi beplanethi u-A kanye neplanethi u-B singu-2:3, kanti isilinganiso serediyasi yeplanethi u-A kanye neplanethi u-B singu-1:2. Uma isisindo sento eplanethi u-A singu-w, siyini isisindo sento eplanethi u-B.

Kwaziwa:

Isisindo seplanethi A (m _A ) = 2

Isisindo seplanethi B (m _B ) = 3

Irediyasi yeplanethi A (r _A ) = 1

Irediyasi yeplanethi B (r _B ) = 2

Isisindo sento = m

Isisindo sento eplanethini A = w

Okufunwayo: Isisindo sento eplanethi B

Isixazululo:

Isibalo samandla esisindo esivela emthethweni kaNewton wamandla adonsela phansi:

w = isisindo, G = okungaguquki kwamandla adonsela phansi, M = isisindo seplanethi, m = isisindo sento, r = ibanga phakathi kwento neplanethi. Uma into ephezu kweplanethi ingaphezulu, r = irediyasi yeplanethi.

Isisindo sento eplanethi A:

Isisindo sento eplanethi B:

Ubunzima bento buyafana ngakho-ke esikhundleni sika-m kufakwe u-w/2G.

5. Irokhethi enesisindo esingu-w ikhishwa iqonde phezulu isuka ebusweni boMhlaba. U-D ububanzi boMhlaba. Uma irokhethi liphakeme ngo-0.5 D ngaphezu kobuso boMhlaba, khona-ke isisindo serokhethi siyini.

Kwaziwa:

Isisindo serokhethi = w

Irediyasi yoMhlaba = ibanga ukusuka enkabeni yoMhlaba = R

Ububanzi boMhlaba = D = 2R

Okufunwayo: Isisindo serokhethi lapho irokhethi liphakeme ngama-0.5 D ngaphezu kobuso boMhlaba.

Isixazululo:

0.5 D = 0.5 (2R) = R

Ibanga lerokhethi ukusuka enkabeni yoMhlaba = irediyasi yoMhlaba + irediyasi yerokhethi ukusuka ebusweni boMhlaba = R + R = 2R

Isisindo amandla adonsela phansi asebenza entweni. Amandla adonsela phansi (F) alingana ngokuphambene nesikwele sebanga elivela enkabeni yomhlaba (R) ukuze isisindo silingane ngokuphambene nesikwele sebanga.

1. Umthetho kaNewton wezinkinga zamandla adonsela phansi kanye nezixazululo
2. Amandla adonsela phansi, izinkinga zesisindo, kanye nezixazululo
3. Ukusheshisa ngenxa yezinkinga zamandla adonsela phansi kanye nezixazululo
4. Izinkinga zesathelayithi ze-geosynchronous kanye nezixazululo
5. Izinkinga zomthetho kaKepler kanye nezixazululo izinkinga kanye nezixazululo