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g=10m/s²
W=240J
W=ΔEp
Ep=mgh
240=m*10*1,6
240=16m
m=15kg
F=m*10 m/s
240 J = m*10*1,6
240=m*16/ 16
m=15
W=240J
s=h= 1,6m
g=10m/s²
Szukane:
m=?
Wzory
W= F*s
F=m*g
W=m*g*F
m=W/g*s
Rozwiązanie:
m= 240/10*1,6
m=15kg