The kinetic energy of a body decreases by `19%`. What is the percentage decrease in its momentum?

Explanation

To solve the problem of finding the percentage decrease in momentum when the kinetic energy of a body decreases by 19%, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Relationship Between Kinetic Energy and Momentum**:
The kinetic energy (KE) of a body is given by the formula:
\[
KE = \frac{1}{2} mv^2
...