A 54 mm rocket on an I175 in a 4 m/s west wind, ejecting its nose cone and a payload
Not yet validated: see the Accuracy page before trusting these numbers.

liftoff                       0.00 s      0.4 m
rail exit                     0.20 s      3.2 m
burnout                       2.50 s    474.9 m
apogee                       16.23 s   1747.2 m
nose cone chute charge       16.23 s   1747.2 m
nose cone chute opens        16.23 s   1747.2 m
nose cone ejected            16.23 s   1747.2 m

body         mass (kg)   flies from (s)   lands (s)   at (m/s)   terminal (m/s)   east (m)   north (m)
0 nose cone      0.063            16.23      562.88       3.06             3.06     2035.4         2.8
1 airframe       0.556            16.23      333.54       4.54             4.54     1115.6         2.9
2 payload        0.250           268.05      333.14       4.57             4.57     1114.0         2.9

The payload leaves at 268.05 s: the airframe's body goes from 0.806 kg to 0.556 kg.

Again, with a 1 N·s push at each parting and the nose cone tumbling:
body         mass (kg)   lands (s)   at (m/s)   terminal (m/s)   east (m)   north (m)   moved (m)
0 nose cone      0.063      130.93      14.82            14.82      269.6         3.3      1765.7
1 airframe       0.556      333.42       4.54             4.54     1115.6         2.8         0.0
2 payload        0.250      333.33       4.57             4.57     1115.3         2.8         1.3

At 300 m the charge changes the payload's velocity by 4.00 m/s (1 N·s / 0.250 kg), +4.00 m/s of it upward, toward the airframe's parachute,
and the airframe's by 1.80 m/s (1 N·s / 0.556 kg), -1.80 m/s of it upward.
