A 75-N sack is dragged along the floor with a horizontal force of 100N. The frictional force is 30N. What is the direction of net force

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To determine the direction of the net force, we need to consider the forces acting on the sack.

In this case, the horizontal force of 100N is acting in one direction, and the frictional force of 30N is acting in the opposite direction.

Since the forces are acting in opposite directions, we need to subtract the magnitude of the frictional force from the magnitude of the applied force to find the net force:

Net force = Applied force - Frictional force

Net force = 100N - 30N

Net force = 70N

The net force is 70N, which means it acts in the same direction as the applied force. So, the direction of the net force in this scenario is in the direction of the applied force, which is horizontal.