oblicz,w jakim czasie silniczeko o mocy 20Wat podniesienie ciezrek omasie 2kg na wysokosc 0,5m
Dane: P=20 W
m=2kg
h=0,5 m
g=10m/s2
P=W/t
t=W/P
W=F*h = mgh
t=mgh/P
t=2 kg * 10m/s^2 * 0,5m /20W =0,5s
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Dane: P=20 W
m=2kg
h=0,5 m
g=10m/s2
P=W/t
t=W/P
W=F*h = mgh
t=mgh/P
t=2 kg * 10m/s^2 * 0,5m /20W =0,5s