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t=10s
m=2kg
s=(a*t^2)/2
2s=a*t^2
a=2s/t^2
a=2*100/10*10
a=200?100
a=2m/s^2
F=m*a
F=2*2
F=4N
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Zrobione :D
m=2kg
t=10s
s=100m
Szukane:
V=?
Ek=?
Rozwiązanie:
V=s/t
V=100:10
V=10[m/s]
Ek=m×V²/2
Ek=2×10²/2
Ek=2×100/2
Ek=200/2
Ek=100[J]