We examined if it's possible to execute .... or not based on the assumption that the distance between A and B is 10 meters.
詳しいシチュエーションがわかりませんが、次のように言えるかと思います。
ーWe examined if it's possible to execute .... or not based on the assumption that the distance between A and B is 10 meters.
「AとBの距離が10mと仮定して…を実施可能かどうか検討した」
to examine で「検討する」
to execute で「実施する」
based on the assumption that ...「…と想定して・仮定して」
distance between A and B で「AとBの間の距離」
ご参考まで!