A particle of mass 20 g is thrown vertically upwards with a speed of 10 m/s. Find the work done by the force of gravity during the time the particle goes up.

Explanation

To solve the problem of finding the work done by the force of gravity on a particle thrown vertically upwards, we can follow these steps:

### Step 1: Identify the given values
- Mass of the particle (m) = 20 g = 0.02 kg (since 1 g = 0.001 kg)
- Initial speed (u) = 10 m/s
- Final speed (v) at the highest point = 0 m/s (the particle stops momentarily before falling back down)

### Step 2: Calculate the initial kinetic energy (KE_initial)
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