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Ek = 64 J
v = ?
Ek = 1/2 m v²
64 = 1/2 x 2 x v²
64 = v²
v = 8m/s
m=2kg
Ek=64 J
Ditanya: v=....?
Jawab:
Ek=1/2 m.v2
v2=Ek : 1/2 m
v2= 64 J : 1/2 . 2
v2=64 J
v=