A man weighing `55kg` supports a body of `20kg` on his head. Calculate work done by him if he moves a distance of `20m(i)` on a horizontal road, (ii) upon a smooth incline of 1 in 5. Take `g=10ms^(-2)`

Explanation

To solve the problem step by step, we will address both parts of the question separately.

### Part (i): Work Done on a Horizontal Road

1. **Identify the forces acting on the man and the body**:
- The man weighs 55 kg and supports a body weighing 20 kg. The total weight supported is:
\[
\text{Total Weight} = 55 \, \text{kg} + 20 \, \text{kg} = 75 \, \text{kg}
...