Jawaban:
v₂ = 20 m/s
Penjelasan:
hk kekekalan momentum
m.v = m₁.v₁ + m₂.v₂
1. 18 = 0,2. 10 + 0,8. v₂
18 = 2 + 0,8.v₂
0,8.v₂ = 16
v₂ = 16/0,8
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Jawaban:
v₂ = 20 m/s
Penjelasan:
hk kekekalan momentum
m.v = m₁.v₁ + m₂.v₂
1. 18 = 0,2. 10 + 0,8. v₂
18 = 2 + 0,8.v₂
0,8.v₂ = 16
v₂ = 16/0,8
v₂ = 20 m/s