1. A truck pulls a trailer on a flat stretch of road. The forces acting on the trailer are the force due to gravity (250 000 N downward), the force
exerted by the road (250 000 N upward), and the force exerted by the
cable connecting the trailer to the truck (20 000 N to the right). The
forces acting on the truck are the force due to gravity (80 000 N down-
ward), the force exerted by the road (80 000 N upward), the force exerted
by the cable (20 000 N to the left), and the force causing the truck to
move forward (26 400 N to the right).
a. Draw and label a free-body diagram of the trailer.
b. Draw and label a free-body diagram of the truck.