Dane:
m=40kg
h=150cm=1,5m
t=4/10s
Oblicz:
P=?
Rozwiązanie:
dane:
m = 40 kg
t = 0,4 s
h = 150 cm = 1,5 m \g = 10 m/s²
szukane:
P = ?
P = W/t
W = Ep = mgh
P = mgh/t
P = 40kg*10m/s²*1,5m/0,4s = 1 500 W
1 kW = 1000 W
P = 1,5 kW
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Dane:
m=40kg
h=150cm=1,5m
t=4/10s
Oblicz:
P=?
Rozwiązanie:
dane:
m = 40 kg
t = 0,4 s
h = 150 cm = 1,5 m \g = 10 m/s²
szukane:
P = ?
P = W/t
W = Ep = mgh
P = mgh/t
P = 40kg*10m/s²*1,5m/0,4s = 1 500 W
1 kW = 1000 W
P = 1,5 kW
========