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m = 30 kg
h = 50 m
g = 10 m/s2
Ec = ?
Necesitamos la velocidad al llegar al suelo.
vf2 = 2gh
vf2 = 2(10m/s2)*(50m)
vf = √1000 m2/s2
vf = 31,62 m/s
Ahora energía cinética
Ec = 1/2 m * V2
Ec = 1/2 30 kg * (31,62m/s)2
Ec = 15 kg * 999,82 m2/s2
Ec = 14997,36 Julios ------> Solución
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