Jawaban:
EMa=EMb
Epa+Eka=Epe+Eke
m.g.ha+0=m.g.he+1/2mve²
semua ruas dibgi m maka
g.ha=g.he+1/2ve²
10.120=10.40+1/2ve²
1200=400+1/2ve²
800=1/2ve²
ve²=1600
ve=40 m/s
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Jawaban:
EMa=EMb
Epa+Eka=Epe+Eke
m.g.ha+0=m.g.he+1/2mve²
semua ruas dibgi m maka
g.ha=g.he+1/2ve²
10.120=10.40+1/2ve²
1200=400+1/2ve²
800=1/2ve²
ve²=1600
ve=40 m/s