Two astronauts, each of mass 75kg are fl...

Two astronauts, each of mass `75kg` are floating next to each other in space, outside the space shuttle one of them pushes the other through a distance of 1m (an arms length) with a force of `300N.` What is the final relative velocity of the two ?

`2.0 m//s`

`2.83 m//s`

`5.66m//s`

`4m//s`

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