Odpowiedź:
Dane: szukane:
m= 900kg Ek=?
v=20m/s
Ek= 1/2 m * v²
Ek= 1/2 900kg * (20m/s)²=
Ek= 450 *400 =
Ek= 180000 J = 180kJ
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Odpowiedź:
Dane: szukane:
m= 900kg Ek=?
v=20m/s
Ek= 1/2 m * v²
Ek= 1/2 900kg * (20m/s)²=
Ek= 450 *400 =
Ek= 180000 J = 180kJ