diketahui :
m = 35 kg
g = 10 m/s²
h1 = 50 m
h2 = 10 m
vA = 0 karena di atas belum meluncur
ditanya :
Ek B
jawab :
Ep A + Ek A = Ep B + Ek B
m.g.h1 + 0 = m.g.h2 + Ek B
Ek B = m.g.h1 - m.g.h2
= m . g . ( h1 - h2 )
= 35 x 10 x ( 50 - 10 )
= 14.000 joule
jawabannnya : C
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diketahui :
m = 35 kg
g = 10 m/s²
h1 = 50 m
h2 = 10 m
vA = 0 karena di atas belum meluncur
ditanya :
Ek B
jawab :
Ep A + Ek A = Ep B + Ek B
m.g.h1 + 0 = m.g.h2 + Ek B
Ek B = m.g.h1 - m.g.h2
= m . g . ( h1 - h2 )
= 35 x 10 x ( 50 - 10 )
= 14.000 joule
jawabannnya : C