# A ball of mass 2𝑘𝑔 and another of mass 4𝑘𝑔 are dropped together from a 60 𝑓𝑒𝑒𝑡 tall building. After a tall of 30 𝑓𝑒𝑒𝑡 each towards earth, their respective kinetic energies will be in the ratio of

Question: A ball of mass 2𝑘𝑔 and another of mass 4𝑘𝑔 are dropped together from a 60 𝑓𝑒𝑒𝑡 tall building. After a tall of 30 𝑓𝑒𝑒𝑡 each towards earth, their respective kinetic energies will be in the ratio of

(A) $\sqrt{2}$ :1

(B) 1:4

(C) 1:2

(D) 1: $\sqrt{2}$