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

a)

b)

1:4

c)

1:2

d)

1:



Question ID - 51680 | SaraNextGen Top Answer

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

a)

b)

1:4

c)

1:2

d)

1:

1 Answer
127 votes
Answer Key / Explanation : (c) -

(c)

Kinetic energy

As both balls are falling through same height, therefore they possess same velocity.

127 votes


127