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}
Answer: Option (C)
Solution:
