A ball of mass 2kg and another of mass 4kg are dropped together from a 60 feet tall building. After a fall of 30 feet each towards earth, their respective kinetic energies will be in the ratio of
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Kinetic energy 
As both balls are falling through same height therefore they possess same velocity.
but 
(If v = constant)
∴ ∴ 
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