A raindrop of mass 2g falling from a height of 1.00 km, hits the ground with a speed of `40.0 ms^(-1).`
(a) Find the work done by the grativational force.
(b) Find the work done by the opposing resistive force `(g=10ms^(-2))`

Explanation

To solve the problem step by step, we will break it down into two parts: (a) finding the work done by the gravitational force and (b) finding the work done by the opposing resistive force.

### Part (a): Work Done by the Gravitational Force

1. **Identify the given values:**
- Mass of the raindrop, \( m = 2 \, \text{g} = 2 \times 10^{-3} \, \text{kg} \)
- Height from which it falls, \( h = 1.00 \, \text{km} = 1000 \, \text{m} \)
- Acceleration due to gravity, \( g = 10 \, \text{m/s}^2 \)
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