Dua buah bola masing-masing mempunyai massa 60 kg berada diatas sebuah perahu yang bermassa 140 kg bila perahu bergerak dengan kecepatan 10 meter per sekon maka momentum yang dimiliki oleh sistem adalah

dua buah bola masing-masing mempunyai massa 60 kg berada diatas sebuah perahu yang bermassa 140 kg bila perahu bergerak dengan kecepatan 10 meter per sekon maka momentum yang dimiliki oleh sistem adalah

Jawaban : 2000 kgm/s

Diketahui:
m = 60 kg + 140 kg = 200 kg
v = 10 m/s

Ditanya: p = … ?

Pembahasan:

Momentum didefinisikan sebagai hasil perkalian antara massa dan kecepatan benda. Secara matematis dirumuskan sebagai berikut.

p = m · v

Keterangan:
p : momentum (kgm/s)
m : massa benda (kg)
v : kecepatan benda (m/s)

Dengan menerapkan rumus di atas, diperoleh:

p = m · v
p = 200 · 10
p = 2000 kgm/s

Jadi, momentum yang dimiliki oleh sistem tersebut adalah 2000 kgm/s.

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