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Maka :
>> Ema = Emb
>> Epa + Eka = Epb + Ekb
>> m.g.ha + 1/2.m.va2 = m.g.hb + 1/2.m.vb2 [massanya dicoret semua karena massanya sama]
>> g.ha + 1.2.va2 = g.hb + 1/2.vb2
>> 10. 100 + 1/2.(10)2 = 10.50 + 1/2.vb2
>> 1000 + 1/2.100 = 500 + 1/2.vb2
>> 1000 - 500 + 50 = 1/2.vb2
>> 500 + 50 = 1/2.vb2
>> 550 =1/2.vb2
>> 1100 = vb2
>> vb = √1100
>> vb = √11.100
>> vb = 10√11 m/s