When a body of mass 2.0 kg is suspended by a spring, the spring is stretched. If the body is pulled down slightly and released, it coscillated up and down. What force is applied on the body by the spring when it passes through the mean position ? `(g=9.8Nkg^(-1))`

Explanation

To solve the problem, we need to determine the force applied on the body by the spring when it passes through the mean position during its oscillation.

### Step-by-Step Solution:

1. **Identify the Mass and Gravitational Force**:
- The mass of the body (m) is given as 2.0 kg.
- The acceleration due to gravity (g) is given as 9.8 N/kg.
- The weight (W) of the body can be calculated using the formula:
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