Jawabanmu

2014-02-14T19:38:16+07:00
EK = 1/2 mv^2

EK = 500J
m = 100gram (massa dijadikan kilogram)
m = 100/1000 = 1/10 = 0,1 kg
v = ...?

Ek = 1/2 mv^2
500 = 1/2 (0,1) v^2
500 = 0,05 v^2
v^2 = 500 / 0,05
v^2 = 10000
v = √10000
v = 100m/s

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