A body of mass 10 kg is dropped from a height of 20 m. (Take g = 10 `3/s^2)`
Its kinetic energy when it is 8 m abgve the ground

Explanation

To solve the problem of finding the kinetic energy of a body of mass 10 kg dropped from a height of 20 m when it is 8 m above the ground, we will follow these steps:

### Step 1: Calculate the Potential Energy at the Initial Height
The potential energy (PE) at a height can be calculated using the formula:
\[ \text{PE} = mgh \]
Where:
- \( m \) = mass of the body (10 kg)
- \( g \) = acceleration due to gravity (10 m/s²)
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