Answer: The correct answer is 500 N in downward direction.
Step-by-step explanation:
Balanced force is defined as the forces which gets cancelled out when equal forces are acting in the opposite direction. The net force on the system comes out to be 0.
Unbalanced force is defined as the forces which does not get cancelled out because unequal forces act on the system in opposite direction. The motion of the object is in the direction of net force.
According to the question:
When Haley tried to pull an object upward, the force applied by her is 5500 N.
The gravitational pull acting downward on the object being pulled is 6000 N.
Net force acting on the object = 6000 - 5500 = 500 N (acting downwards)
Hence, the correct answer is 500 N in downward direction.