Jawabanmu

2014-02-06T02:34:41+07:00
Jika g = 10
Ek = 1/2 mv^2
150 = 1/2.3 V^2
V^2 = 150 . 2/3 = 100
v = 10

pada gerak jatuh bebas, v = akar ( 2gh )
v = 10 = akar ( 2.10.h )
h = 5 meter
2014-02-06T09:37:20+07:00
M = 3kg
Ek = Ep = 150 J
g = 10 m/s kuadrat
h = Ep / m.g
   = 150 J / 10 .3
   = 5 m