A porter lifts a suitcase weighing 20 kg from the platform and puts it on his head 2.0 m above the platform. Calculate the work done by the porter on the suitcase.

Explanation

To calculate the work done by the porter on the suitcase, we can follow these steps:

### Step 1: Identify the weight of the suitcase
The weight of the suitcase can be calculated using the formula:
\[ \text{Weight} (W) = \text{mass} (m) \times \text{acceleration due to gravity} (g) \]
Given:
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