Likewise the driver of a hybrid vehicle towing a trailer may want to insure that {HEAD ~ the drag} exerted on {TAIL ~ the vehicle} does not exceed a certain predetermined threshold or that fuel efficiency is maximized 
exerted on
Likewise the driver of a hybrid vehicle towing a trailer may want to insure that { HEAD ~ the drag } exerted on { TAIL ~ the vehicle } does not exceed a certain predetermined threshold or that fuel efficiency is maximized
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH