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Penyelesaian:Diket.:
m=2 ton=(2×1.000) kg=2.000 kg
vt=72 km/jam=(72×1.000) m/(1×3.600) s=72.000 m/3.600 s=20 m/s
v0=0 m/s
s=20 m
Ditanya:
F=....?
Jawab:
v0²+2a×s=vt²
0²+2a×20=20²
0+2a×20=400
2a=400/20
2a=20
a=20/2
a=10 m/s²
F=m×a
F=2.000×10
F=20.000 N
Jawabannya:
D. 20.000 N
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