A truck of mass `M` is moved under a force `F`. If the truck is then loaded with an object equal to the mass of the truck and the driving force is halved, then how does the acceleration change?

Explanation

To solve the problem, we will analyze the situation using Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma).

### Step-by-Step Solution:

1. **Identify the Initial Conditions**:
- Let the mass of the truck be \( M \).
- The initial force applied to the truck is \( F \).
- According to Newton's second law, the initial acceleration \( A \) can be expressed as:
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