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Verified answer
M = 10³ kgv = 20 m/s
a. Ek = ?
Ek = ½ • m • v²
Ek = ½ • 10³ • 20²
Ek = 200000 Joule
b. W = Perubahan Energi Kinetik
Karena v₁ = 0 , maka W = Ek
W = 200000 Joule