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10. Dik : M = 400 gram = 0.4 kg
g = 10m^
h = 6 m
Dit : Ep?
Jawab : Ep = M x G xH
= 0.4 x 10 x 6
= 24 J (B)
11. Dik : M = 2kg
Ep= 100 J
Dit : H?
Jawab : H = Ep/ M.2
= 100/20
= 5 m(B)
12. Dik : M = 200gram = 0.2 kg
V= 5m/s
Dit : Ek?
Jawab : Ek = 1/2 x mx v^
= 1/2 x 0.2 x 25
= 2.5 J (C)

^ : Pangkat 2 ((: