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t = 30 detik
s = 240 m
Ek = 1/2 x m x v^2
v = s/t
v = 240/30
v = 8
Ek = 1/2 x 60 x 8^2
Ek = 1/2 x 60 x 64
Ek = 1920 Joule
ket = tanda ^ = pangkat
maaf kalau salah.. semoga membantu :)
Dit : ek = .... ?
v = s/t = 240m/30 second = 8m/s
ek = 1/2 x m x v(pangkat dua)
ek = 1/2 x 60kg x 8^2 m/s
ek =1/2 x 60kg x 64m/s
ek = 1920 J(Joule)
Insyaallah betul. :) ^.^