Tolong di kerjakan nomer 12...

Ep1/Ep2 = m1g1h1/m2g2h2
Ep/ 1/2Ep = 10 × g × h / 10 × g × h2
2 = h / h2
(massa dan gravitasi dianggap sama)
2h2 = h
h2 = 1/2 h
Jawaban: B