1. Vt = Vo - (a x t)
Vt = 16 - (0,05 x 120)
Vt = 16 - 6
Vt = 10 (kecepatan perahu setelah perlambatan)
2. (massa Tini + massa Tono + massa perahu) x Vt = (massa Tini + massa perahu) x Vt' + (massa Tono x V tono)
(15 + 40 + 145) x 16 = ((15 + 145) x Vt') + (40 x 2,5)
200 x 16 = (160 x Vt') + 100
3200 - 100 = 160Vt'
3100 = 160 Vt'
Vt' = 19,375 m/s
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1. Vt = Vo - (a x t)
Vt = 16 - (0,05 x 120)
Vt = 16 - 6
Vt = 10 (kecepatan perahu setelah perlambatan)
2. (massa Tini + massa Tono + massa perahu) x Vt = (massa Tini + massa perahu) x Vt' + (massa Tono x V tono)
(15 + 40 + 145) x 16 = ((15 + 145) x Vt') + (40 x 2,5)
200 x 16 = (160 x Vt') + 100
3200 - 100 = 160Vt'
3100 = 160 Vt'
Vt' = 19,375 m/s