Odpowiedzi

2010-03-07T18:46:11+01:00
Dane:
m = 5 kg
h= 2m
Rozw.:
W = F × h
F = m × g
W = m × g × h = 5 kg × 10 [m/s²] × 2m = 100 J
2010-03-07T18:46:18+01:00
Dane:
m=5kg
s=2m
g=10N/kg
W=?

W=F*s
W=m*g*s
W=5kg*10N/kg*2m
W=100J
2010-03-07T18:48:00+01:00
Dane szukane
m=5kg F=?
s=h= 2m w=?
g=10N/kg

F=m*g
F= 5kg* 10N/kg
F=50N

W=F*s
W= 50N* 2m
W= 100J