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orbitalmechanics

**This is an old revision of the document!**

1 Newton = 1 kg * m/s^2

== Vehicle

80kg (175 lbs)

80kg in earth's gravity (9.8m/s^2) creates 784 Newtons of downward force.

== Motor

http://en.wikipedia.org/wiki/Model_rocket_motor_classification

1,000 N engine (enough to overcome rocket weight)

== Launch

The upward force is 216N.

The motor runs for 1 second.

== Questions

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?

position = acceleration * time^2 / 2 (from two rounds of integration)

2.7 * 1^2 / 2 = 1.45m

orbitalmechanics.1314312915.txt.gz · Last modified: 2016/06/25 11:25 (external edit)