It depends what you are sitting on or in.
Yes, you can pray while sitting down.
Only if you are a photon. In that case, you always move at the speed of light. If you're not a photon, and have any mass while you're sitting still, and are not moving at the speed of light right now, then you can never attain light speed.
sitting on the gunwalessitting on the gunwales
Standing
i was told the alternator was going bad and somehow it was backing up into the speedometer
Yes, it is permissible to pray while sitting down in many religious traditions.
Think.
When sitting on the toilet. While stand with one leg up on a bed or bathtub.
In a chair.
There is many ways to work out while working, if you work at a desk you can try standing instead of sitting, try doing some squats while standing, walk around, take a break and jog in place, leg raises while sitting, buttox sqeezes while sitting.
Aaron likes the KKK
If one is kneeling, one may drop the buttocks onto the heels. It could be said in that case that one is sitting (on one's heels) while kneeling. It is not quite the same as saying one is kneeling while sitting, as the kneeling came first.