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v=1m/s
t=2s
f=?
F tarcia= F nacisku(ciężkości)*f
Fn=m*10
s=½v*t
s=½1*2=1m
s=½a*t²
2=½a*4
s=2a
a=1m/s²
F(ogólna)= m*a
F=F(tarcia)
m*1=m*10*f/m
1=10f
f=0,1