In a ballistic demonstration, a police officer fires a bullet of mass `50g` with a speed of `220m//s` on a wooden target. The bullet emerges with `20%` of its initial `K.E.` What is the emergent speed of the bullet ?

Explanation

To solve the problem step by step, we will follow the outlined process in the video transcript.

### Step 1: Calculate the Initial Kinetic Energy (KE) of the Bullet
The formula for kinetic energy (KE) is given by:

\[ KE = \frac{1}{2} mv^2 \]
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