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A ball of mass 1 kg is thrown vertically...

A ball of mass 1 kg is thrown vertically upward and returns to the ground after 3 second. Another ball, thrown at `60^(@)` with vertical also stays in air for the same time before it touches the ground. The ratio of the two heights are

A

`1:3`

B

`1:2`

C

`1:1`

D

`2:1`

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