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DIT: EK?
peny: 1/2 m.v(pangkat 2)
: 1/2 5.10.10
: 1/2 5.100
: 250 joule
semoga membantu
v=10km/jam
dit:Ek...?
jwb;Ek=1/2mv kuadrat
=1/2(5kg)(10km/jam)kuadrat
=1/2(5kg)(100km/jam)
=1/2x500
=250joule