tolong ksh caranya ya, trims

EK = 1/2 x M x V2
      = 1/2 x 0.2 x 10 x 10 = 10 Joule

Dit : Ek2 = ...?

Jwb :
Em1 = Em2
Ek1 + Ep1 = Ek2 + Ep2
0 + m×g×h1 = Ek2 + m×g×h2
Ek2 = m×g×h2 – m×g×h1
Ek2 = m×g (h2 - h1)
Ek2 = 0,2 kg × 10 m/s (10 m - 4 m)
Ek2 = 2 × 6
Ek2 = 12 Joule

Maaf kalau salah