A body of mass 10 kg is kept at a height of 5 m. It is allowed to fall and reach the ground.
What is the total mechanical energy possessed by the body at the height of 2 m assuming it is a frictionless medium ?

Explanation

To solve the problem, we need to determine the total mechanical energy of the body at a height of 2 meters. The total mechanical energy is the sum of potential energy (PE) and kinetic energy (KE) of the body.

### Step-by-Step Solution:

1. **Identify the Given Values:**
- Mass of the body (m) = 10 kg
- Height (h) = 5 m (initial height)
- Height at which we need to find the energy (h') = 2 m
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