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m= 0,02 kg
v= 200 m/s
Dit:
Ek=..?
Penye:
Ek= 1/2.m.v²
Ek= 1/2×0,02×200²
Ek= 1/2×0,02×40000
Ek= 400 Joule
Ek=1/2.0,02.200 2
Ek= 0,01 . 40000
Ek= 400
keterangan; 2 itu adalah kuadrat