The kinetic energy of a body is increased by `21%`. What is the percentage increase in the magnitude of linear momentum of the body?

Explanation

To find the percentage increase in the magnitude of linear momentum when the kinetic energy of a body is increased by 21%, we can follow these steps:

### Step 1: Understand the relationship between kinetic energy and momentum
The kinetic energy (KE) of a body is given by the formula:
\[ KE = \frac{1}{2} mv^2 \]
where \( m \) is the mass and \( v \) is the velocity of the body. The linear momentum (p) is given by:
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