The four options are four different velocities. There's no way for any of us here to know which one equals to the velocity you're given because you've omitted it.
That said you should be able to do the conversion yourself.
All you need to know is that nano is a prefix meaning one billionth (or a factor of 10⁻⁹) and one hour has 3,600 seconds.
Answers & Comments
The four options are four different velocities. There's no way for any of us here to know which one equals to the velocity you're given because you've omitted it.
That said you should be able to do the conversion yourself.
All you need to know is that nano is a prefix meaning one billionth (or a factor of 10⁻⁹) and one hour has 3,600 seconds.