A box is given a push across the floor. It comes to stop shortly after. Which one of the following reasons explain why this happen?

Options

A. Gravity is acting on the box in the direction opposite to the box's movement.
B. Friction is acting on the box in the same direction of the box's movement.
C. Friction is acting on the box in the direction opposite to the box's movement.
D. The heat produced during the box's movement slows down the box

Answer

To understand why the box comes to a stop shortly after being pushed, we need to consider the forces acting on it and the concept of friction.

### Step-by-Step Solution:

1. **Identify the Initial Action**: When the box is given a push, it starts moving across the floor. This push provides the box with an initial velocity.

2. **Recognize the Role of Friction**: As the box moves, it encounters friction between its surface and the floor. Friction is a force that opposes the motion of the box.

3. **Understand the Effect of Friction**: The frictional force acts in the opposite direction to the box's motion. This force gradually slows down the box.

4. **Determine the Resulting Motion**: As the frictional force continues to act on the box, it reduces the box's speed until it eventually comes to a stop.

5. **Conclusion**: The box stops shortly after being pushed primarily due to the frictional force acting against its motion.

### Final Answer:
The box comes to a stop shortly after being pushed because of the frictional force acting on it, which opposes its motion.

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