orbitalmechanics
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orbitalmechanics [2011/08/25 21:12] – donpdonp | orbitalmechanics [2024/01/31 04:08] (current) – external edit 127.0.0.1 | ||
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80kg (175 lbs) | 80kg (175 lbs) | ||
- | Earth's gravity creates 784 Newtons of downward force | + | 80kg in earth's gravity |
== Motor | == Motor | ||
Line 11: | Line 11: | ||
http:// | http:// | ||
- | Size J - 1,000 N*s (enough to overcome | + | 1,000 N engine |
- | == Questions | + | == Launch |
- | Given that the motor has run for one second, | + | The upward force is 216N. |
+ | |||
+ | The motor runs for 1 second. | ||
+ | |||
+ | |||
+ | == Questions | ||
What is the speed of the vehicle? | What is the speed of the vehicle? | ||
+ | |||
+ | 216N * 1s = 216 kg m/s (Unit of momentum) | ||
+ | |||
+ | 216kg m/s / 80 kg = 2.7m/s | ||
What is the altitude of the vehicle? | What is the altitude of the vehicle? | ||
+ | |||
+ | position = acceleration * time^2 / 2 (from two rounds of integration) | ||
+ | |||
+ | 2.7 * 1^2 / 2 = 1.45m | ||
+ | |||
orbitalmechanics.1314306750.txt.gz · Last modified: 2024/01/31 04:08 (external edit)