Two construction workers are attempting to pull a slab of concrete off of the ground. Each of the workers are pulling up with a force of 225 N, while the slab of concrete applies a gravitational force of 400 N in the opposite direction, remaining stationary. If the pulling forces applied to the slab of concrete are assigned a positive value, what is the net force of the scenario, and in which direction will the slab of concrete move? (1 point) Responses 50 N; the slab will move upward 50 N; the slab will move upward -175 N; the slab will remain stationary -175 N; the slab will remain stationary -50 N; the slab will remain stationary -50 N; the slab will remain stationary 175 N; the slab will move upward
The net force can be calculated by adding up all the forces acting on the slab of concrete. In this case, the pulling forces applied by the construction workers are positive forces, while the gravitational force applied by the slab of concrete is in the opposite direction and negative.
Net force = Sum of all forces
= (225 N + 225 N) + (-400 N)
= 450 N - 400 N
= 50 N
Therefore, the net force acting on the slab of concrete is 50 N.
Since the net force is positive and in the upward direction, the slab of concrete will move upward.