Jawabanmu

2014-09-04T09:30:15+07:00
Dik :
m = 2 kg
V = 10 m/s
Ek =?

Ek = 1/2 . m . V²
Ek = 1/2 . 2. 10²
Ek = 1/2. 2.100
Ek = 100 joule
2014-09-04T09:45:33+07:00
Ek = 1/2 m v²
m=massa(kg)
v=kelajuan (m/s)

= 1/2 x 2 x 10²
= 10²
= 100joule