ile wynosi masa donicy która umieszczone jest na parapecie o wysokości 60cm energia potencjalna donicy wynosi 12 J
dane:
h = 60 cm = 0,6 m
Ep = 12 J = 12 kg*m2/s2
g = 10 m/s2
szukane:
m = ?
Ep = m*g*h /:gh
m = Ep/gh
m = 12kg*m2/s2 /(10m/s2* 0,6m)
m = 2 kg
=======
Odp.Masa donicy wynoasi 2 kg.
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dane:
h = 60 cm = 0,6 m
Ep = 12 J = 12 kg*m2/s2
g = 10 m/s2
szukane:
m = ?
Ep = m*g*h /:gh
m = Ep/gh
m = 12kg*m2/s2 /(10m/s2* 0,6m)
m = 2 kg
=======
Odp.Masa donicy wynoasi 2 kg.