Which statement describes the force diagram? a. the forces are balanced. b. the box will move to the right. c. the box will move to the left. d. the forces are unbalanced.

A. The forces are balanced.

Explanation:

The length of each arrow represents the magnitude of each force, while the direction of each arrow represents the direction of each force.

From the diagram, we see that the four arrows have all same length: this means that the four forces have same magnitude, therefore they are balanced in pair. In fact:

- On the vertical direction, the normal reaction () balances the weight of the box ()

- On the horizontal direction, the push () balances the force of friction ()

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