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m = 4 kg
h = 6 m
g = 10m/s^2
ditanya
w ?
jawab
w = m.g.h
w = 4 kg. 6 m. 10m/s^2
w = 240 J
V:10 m/s
G:6 m
ditanya...(Ek,EP,Em,Ep1)
dijawab:Ek:1/2.m.(V)2
= 1/2.4KG.(10 m/s)2
= 2kg.100 m/s
=200 joule
Ep:M.G.H
=4kg.6 m.10 m/s'2
=24.10 m/s'2
=240 joule
Em=(Ek+Ep)
=200 J+240 J
=440 Joule
Ep1=M.G.H1
440 J=4 kg.10 m/s.H1
440 J=40.H1
H1=440/40=11