5. (2 ptk.)Oblicz energie potencjalną piłki o masie 0,5kg podniesionej na wysokość 20m.
m=0,5kg
h=20m
g=10m/s^2
Ep=m*g*h
Ep=0,5kg*10m/s^2*20m
Ep=100kg*m/s^2*m
Ep=100N*m
Ep=100J
Ep = m * g * h
m = 0,5 kg
g = 9,80665 m/s ~~ 10 M/s
h = 20 m
Ep = 0,5 * 10 * 20 = 100 J = 0,1kJ
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m=0,5kg
h=20m
g=10m/s^2
Ep=m*g*h
Ep=0,5kg*10m/s^2*20m
Ep=100kg*m/s^2*m
Ep=100N*m
Ep=100J
Ep = m * g * h
m = 0,5 kg
g = 9,80665 m/s ~~ 10 M/s
h = 20 m
Ep = 0,5 * 10 * 20 = 100 J = 0,1kJ