Question

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 enerfies will be in the ratio of

Answer 1

Answer:

1:2

Explanation:

v^2-u^2=2as

2x9.81x30=v^2-0

v=24 ft/s

so kinetic energy of 2 kg mass=588.5

kinetic energy of 4 kg mass=1177

so the ratio will be 1:2