The two blocks in an Atwood machine have masses 2.0 kg and 3.0 kg. Find the work done by gravity during the fourth second after the system is released from rest.

Explanation

To solve the problem of finding the work done by gravity during the fourth second after the system is released from rest in an Atwood machine with masses of 2.0 kg and 3.0 kg, we can follow these steps:

### Step 1: Determine the acceleration of the system
1. **Identify the forces acting on each block:**
- For the 3.0 kg block (heavier block): The forces are weight (3g) downward and tension (T) upward.
- For the 2.0 kg block (lighter block): The forces are weight (2g) downward and tension (T) upward.

2. **Set up the equations of motion:**
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