Jawabanmu

2014-06-03T23:34:29+07:00
F = m.a
a = F/m = 6/0,5 = 12 m/s^2

v = a.t = 12.5=60 m/s

W = ΔEk = Ek2 - Ek1
Ek1 = nol krn kec awal nol
W = Ek2 = 1/2 mv^2 = 1/2 (0,5) (60^2) = 900 J