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m=2 kg
dit v=...?
peny.
Ek=1/2 m v²
25=1/2 2 v²
25=v²
v=√25
v=5 m/s
Ek= 25 joule
m= 2 Kg
Dit:
v=...?
Penye:
Ek= 1/2×m×v²
1/2×2×v²= 25
1×v²= 25
v²= 25/1
v²= 25
v=
v= 5 m/s