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The question asks about what would happen if Charlie, who pulls a wooden block at 1 m/s with a 5.0 N force, increases the force to 10.0 N.

Let's analyze:

- **Constant speed** means that the force applied (5.0 N) is balanced by opposing forces like friction. This means that at 5.0 N, Charlie just overcomes friction, resulting in no acceleration.
  
- If Charlie **increases the force** to 10.0 N, this is no longer balanced with the frictional force, so the block will accelerate. Therefore, the block will **not** continue moving at a constant speed.

### Correct Answer: 
**(c)** The block would speed up as it moves across the table.

Would you like a more detailed explanation of how forces and acceleration work in this context?

### Follow-up Questions:
1. What is the relationship between force, mass, and acceleration?
2. How would you calculate the acceleration of the block with a 10.0 N force?
3. What role does friction play in this scenario?
4. Would the block eventually reach a new constant speed, and why?
5. How could we determine the mass of the block using the given information?

### Tip:
Remember, when a net force acts on an object, it will accelerate according to Newton's second law: \( F = ma \), where \( F \) is the net force, \( m \) is mass, and \( a \) is acceleration.

Charlie pulls a wooden block across a table at a constant speed of 1 m/s by exerting a constant 5.0-N force on the block. What would happen if Charlie instead exerted a constant 10.0-N force on the block?

Analyze how increasing the force on a wooden block from 5.0 N to 10.0 N affects its motion across a table. This problem covers key physics concepts, including Newton's Second Law of Motion and forces. Suitable for students in Grades 9-11.

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