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m=45 kg
s=3 m
g=10 m/s²
t=6s
Ditanyakan: P=..
Dijawab:
Pakai rumus:
P=W/t
Cari usaha (W) dulu:
W=F.s
⇵Disitu ada gaya,nah gaya yang dipake itu gaya berat:
F=mg
=45.10
=450 N
Jadi usahanya:
⇵W=F.s
=450.3
=1350 Joule
⇵Baru cari Daya minimum (P):
P=W/t
=1350/6
=225 watt.