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To get away from from Earth's gravity you need to achieve the escape velocity so the rocket has to reach the speed of 40,233 km/h.. So about 9 or 10 minutes to reach the space.0
Rakets usually can't leave earth.
I think @Kushhbrownies pretty much summed it up nicely.
I presume "rocket" and it depends on the type.
Depends on how hard you throw it.
Just one second.
A tennis racket? I don't know what a raket is.. But if you're talking about tennis rackets then probably 1000 years if its plastic.
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