A zone around your vehicle that is unencumbered is called an?

Open zone

Explanation:

An open zone is an area of space around the vehicle driving can be done freely with no restrictions to the line of sight or path of travel whereas a closed zone is restricted space. Line of sight is the path of travel from the starting position of the vehicle to the target area.

So, a zone around your vehicle that is unencumbered is called an open zone.

to increase speed you need to decrease frictiona dn drag hense why sprinters wear tight track suits to keep tight against there skin to keep away from wind and decrease the amount of drag you are carrying.a swimmer will wear the tightest swim suit they can possibly fit into (i was a size 28 swim suit at meets i wore a   size 23) why? because the tighter your clothing is the less drag and negative force you have. the heavier the clothe the slower and more wind gets caught. cotton tends to hold onto alot of sweat and water making it slower then say a track suit (no idea what they are made of but they are really comfy around your answer )

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