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--- orbitalmechanics [2011/08/25 20:59] – donpdonp
+++ orbitalmechanics [2024/01/31 04:08] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+Newton = 1 kg * m/s^2
 == Vehicle
 kg (175 lbs)
+kg in earth's gravity (9.8m/s^2) creates 784 Newtons of downward force.
 == Motor
@@ Line 7: / Line 11: @@
 http://en.wikipedia.org/wiki/Model_rocket_motor_classification
-Size O - 40,000 N*s
+,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?
+N * 1s = 216 kg m/s (Unit of momentum)
+kg m/s / 80 kg = 2.7m/s
+What is the altitude of the vehicle?
+position = acceleration * time^2 / 2  (from two rounds of integration)
+.7 * 1^2 / 2 = 1.45m
-Newton = 1 kg * m/s^2