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V=20m/s
t=5dtk
Ditanya:a=......m/s^2
Jawab:
S=vt+1/2at^2
125=20x5+1/2a(t)^2
125=100+1/2x25a
125-100=12.5a
25=12.5a
a=25/12.5
a=2m/s^2