Two tractor trailers, each 13m long and 4.0 m tall, are parked next to each other as shown in (Figure 1). A light wind that is blowing at 5.0 m/s in the parking lot but at 20 m/s among the trailers causes the air pressure among them to drop what is the magnitude of the force exerted with the air on each trailer? (Use 1.0 kg/m3 for the air mass density.)