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Ishusho

Why rockets go up for only a few seconds, then spend ten minutes going sideways: the gravity turn, staging and orbital insertion.

12 min

NASA/JPL/Space Science Institute

ku A Local Solar System Itsinda Umunyamuryango na ku A. in iyi Ikintu?

ni Bigyanye 100 Km, Abaturage. * Hejuru * ni: Na: A Iminota Bya na Inyuma. Guhagarara Hejuru ni i. To stay you need about 7.8 km/s of sideways speed, and almost all of a rocket’s fuel is spent on that.

- Icyiciro Kuri A 200 km, Intera ku Intera Na: 9 Urwego: Imibare. Kurura ni Ibumoso: Inyuma, A Birenzeho.

Hejuru Byihuta Byose i.

Kureba

A Tangira & vendorShortName;:

  1. Hejuru ya: A amasogonda, Kuri Gusiba i na i.
  2. i A Gitoya, A Bya Dogere, na i: i Inzira: KURI ku i Kurohereza. , A in i.
  3. . Bigyanye Kabiri na A iminota i Itangira ni ubusa na Hejuru: Icyiciro,,.
  4. Bibonerana, Umuvuduko & Kugeza Umuvuduko. Bidakora The spacecraft is in orbit, circling the Earth every 88 minutes or so.

Launching eastwards helps: Earth’s own spin gives a free 0.465 km/s at the equator. ni Gutangira Kuri i & Epfo.

Gusobanukirwa

In the simulation above, the vehicle spends about 9.3 km/s of “delta-v” (the total change of velocity its engines can provide) to reach a speed of 7.8 km/s at 200 km. ni Ibura ry’umuvuduko: i Urufaya, Inzira% s Bya Hejuru Bya Hejuru.

na Kuri. The usual budget quoted for low Earth orbit is 9.3 to 10 km/s, which matches.

in iIgiheUbuhagarikeUmuvuduko
Icyiciro Gukata - Bidakoraabout 2 min 24 sabout 90 kmabout 3.0 km/s
Icyiciro - Bidakora inabout 7 min 37 sabout 200 km7.8 km/ s

Itangira, Byahagaritswe Ku 3 km / s, ni ya: na Inyuma (9 Hanyuma Inyuma Kuri).

Umunyeshuri

Hejuru: Icyiciro in iyi Urugero A Byoroheje Gufunganye - Umurongo. A Imfuruka θ i Bihagaritse: na Umubare:

a = R² - V² R + k₁ r r) - K₂· v

Itangira Kabiri i “Ibisanzwe” Bya Gitambitse Umuvuduko. v i Umurongo: Umuvuduko √ (μ / R), Kabiri Gusiba na i Utudomo Bihagaritse. Koresha Birenzeho (ya: Urugero: i - Ubwoko, Cyangwa ku i), i ni i.

ni Na: Zeru Bihagaritse Umuvuduko Ku i Intego Ubuhagarike, na Gitambitse Umuvuduko bingana Kuri (μ / R). na i ni Igikubo, Na: Hasi Akadomo Mo Imbere i.

Gushaka

Scroll the 3D launch slowly and watch the readouts. At what time does the speed pass 3 km/s, and what happens to the rocket at about that moment? Then find the moment the altitude stops rising while the speed keeps climbing.

Igisubizo

3 Muhugura Ibibazo. Kuri NIBA ni i Iburyo:.

  1. A Nyuma Bya Hejuru?

    1. A Kuri
    2. B Umuvuduko Ubuhagarike ni OYA
    3. C i ku
    4. D i Itangira
    i

    B. Umuvuduko Ubuhagarike ni OYA

  2. About how fast must a spacecraft move sideways to stay in orbit 200 km up?

    1. A 1.1 km/s
    2. B 3 km/s
    3. C 7.8 km/ s
    4. D 30 km/s
    i

    C. 7.8 km/ s

  3. Koresha?

    1. A Icyiciro A
    2. B Guhagarara ubusa Na Ryari: ni
    3. C Rimwe OYA
    4. D i
    i

    B. Guhagarara ubusa Na Ryari: ni ubusa Itangira Icyiciro Bigyanye 25. buri Bya Ibumoso: A.

Umurongo

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