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Verified answer
MOMENTUMp = peluru. s = senapan
mp = 0,05 kg. vp' = 300 m/s
ms = 1,5 kg. vs' = __?
HKM
Σp = Σp'
(mp + ms) v = mp vp' + ms vs'
0 = 0,05 • 300 + 1,5 • vs'
- 1,5 vs' = 15
vs' = - 10 m/s ← jwb
kecepatan senapan sesaat setelah peluru lepas sebesar 10 m/s berlawanan dengan arah gerak peluru