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Ek 1 = 12 J
m2 = 2m1
v2 = 2v1
ditanyakan :
Ek 2=?
jawab :
Ek2/Ek1 = 2m1(2 v1)² / m1 v1
Ek2/12 = 8m1v1²/m1v1²
Ek/2 12 = 8
Ek2 = 96 J