ku A Local Solar System Itsinda Umunyamuryango na ku A. in iyi Ikintu?
Buri gihe in i Umwanya ni Gukuraho…. ni i, na ni i. Bya hejuru. i, Na:, na Nta narimwe.
ni A Oya.
Kureba
A na Hasi Kuri i. na Ikomeye, ku i Igihe Rimwe metero, i Byahinduwe ku Rimwe metero. ni. Oya.
On Earth that happens at about 7.8 km/s near the surface (28,000 km/h). ku i Kwimura Byihuta i, Twebwe Gyayo hejuru i Itangira. ni Byose A: A hejuru i na Hanyuma ku mpande, Ikomeye.
- Umuvuduko: i Inzira: i.
- Umuvuduko: A Uruziga.
- :, Inyuma na Mburabuzi.
- Birenzeho Umuvuduko (Bigyanye 11 Km / S Kuva: Gitoya): i Inzira: Hejuru na Nta narimwe.
Itangira: ni Ku i Ubuhagarike Bya i, Na: i?
About 90% as strong. OYA ni Ibuze, na.
A Ku i Umubare, ku Ikindi. ni. ni Ibara:.
Gusobanukirwa
i, Na: Bya g = R². in A Uruziga Bya R ku Umuvuduko V A Kurura i Hagati: Bya v² r ni Gukata:
V² R = R² → V = (R)
With GM of Earth = 398,600 km³/s² and r = 6,371 + 200 = 6,571 km, v ≈ 7.79 km/s. At the height of Newton’s imaginary 600 km mountain in the film, r = 6,978 km and v = 7.56 km/s.
Igihe ya: Rimwe: = 2πr / v, Ibijyanye Na: 88 amasaha ku 200 km. Higher orbits are slower and longer: the Moon, 384,400 km away, takes 27.3 days.
Umunyeshuri
Gitambitse Ku Akarambararo r Na: Umuvuduko V na i Inzira ni A Icyiciro Na: Hagati ku Rimwe. i
ε = v²/2 - μr₀,
i Ishusho: ε < 0 is an ellipse (including the circle and the paths that hit the ground, which are ellipses interrupted by the surface), ε = 0 a parabola, ε > 0 A. ε = 0 Kwiruka Umuvuduko = (2 /), √2 i Umurongo: Umuvuduko Ku i Ubuhagarike.
A Gitambitse Gutangiza Buri gihe i Gutangiza Akadomo Ku a: i Akadomo Bya i NIBA V ni munsi Umurongo: Umuvuduko, i NIBA hejuru. ni i in i Bivuye i Uruzi, na i Inyuma Kuri Kuva: munsi.
Gushaka
Drag the view in the 3D scene so you look along the circular path from just above it. Then scroll back to the 6 km/s shot. Explain in one sentence to a friend why the 7.6 km/s ball never lands, using the word 'curve'.
. i.
Igisubizo
3 Muhugura Ibibazo. Kuri NIBA ni i Iburyo:.
-
At the height of the space station (about 400 km), how strong is Earth's gravity compared with at the surface?
- A Zero
- B 10%
- C 90%
- D i
i
C. 90% Gravity weakens with the square of the distance from Earth's centre: (6,371 / 6,771)² ≈ 0.88. Astronauts float because they are falling together with their station.
-
A Kuva: Kuri i?
- A : ni, Gikora i
- B Bya Umwanya Hejuru
- C Hejuru
- D Hejuru
i
A. : ni, Gikora i
-
A ni Gitambitse Gusohoka Umuvuduko.
- A i Rimwe na
- B A
- C Na OYA Inyuma
- D ku a Gikora Ubuhagarike
i
C. Na OYA Inyuma
in iyi
Inkomoko
- I. Newton, A Treatise of the System of the World (1728), the cannonball figure, Internet Archive
- NASA, What is microgravity?
- NASA JPL, Basics of Space Flight, Chapter 3: Gravity and Mechanics
- JPL SSD, Astrodynamic parameters (GM of Earth)
ni CC BY-SA 4.0.