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m= 2 kg
v= 4 m/s
Dit:
Ek=..?
Penye:
Ek= 1/2.m.v²
Ek= 1/2×2×4²
Ek= 1/2×2×16
Ek= 16 Joule
=1/2.2.4.4
=16 Joule