example impulse profile in y direction for free falling unit

[f=0000331] -0.075030326843262
[f=0000331] -0.14444446563721 (1) speed change from previous frame. Note: -0.14444446563721 is gravity pull
[f=0000332] ----
[f=0000332] -0.12854480743408 (2) gadget require this much impulse (speed change) to be applied to unit
[f=0000332] -0.14444446563721
[f=0000333] ----
[f=0000333] -0.18206024169922
[f=0000333] -0.14444446563721 (3) speed change remain indifferent as tho no impulse exist
[f=0000334] ----
[f=0000334] -0.23557472229004
[f=0000334] -0.14444446563721
[f=0000335] ----
[f=0000335] -0.28908920288086
[f=0000335] -0.14444446563721
[f=0000336] ----
[f=0000336] -0.34260416030884 (4) applied impulse keep increasing! but speed change keep same
[f=0000336] -0.14444446563721
[f=0000337] ----
[f=0000337] -0.39611911773682
[f=0000337] -0.14444446563721
[f=0000338] ----
[f=0000338] -0.44963407516479
[f=0000338] -0.14444446563721
[f=0000339] ----
[f=0000339] -0.50314903259277
[f=0000339] -0.14444446563721
[f=0000340] ----
[f=0000340] -0.55666351318359
[f=0000340] -0.14444446563721
[f=0000341] ----
[f=0000341] 2.5708475112915 (6) sudden speed change prompted sudden impulse to fix it
[f=0000341] -3.3254709243774 (5) sudden speed change from previous frame detected
[f=0000342] ----
[f=0000342] -1.021514415741
[f=0000342] 3.3944029808044 (7) <---oscillating speed
[f=0000343] ----
[f=0000343] -1.0750293731689
[f=0000343] -0.14444446563721 (8) impulse no longer effective, it return to non-effected state
[f=0000344] ----
[f=0000344] 1.9353113174438
[f=0000344] -3.208300113678
[f=0000345] ----
[f=0000345] 1.881796836853
[f=0000345] -0.14444446563721
[f=0000346] ----
[f=0000346] -1.8639206886292
[f=0000346] 3.5477576255798 (9) oscillation, where suddenly impulse is effective, then suddenly its not

(10) this continue indefinitely