When the momentum of a body is doubled , its kinetic energy becomes `……………` times the initial kinetic energy .

Explanation

To solve the question, we need to understand the relationship between momentum and kinetic energy.

### Step-by-Step Solution:

1. **Understanding the Definitions**:
- Momentum (P) of a body is defined as \( P = mv \), where \( m \) is the mass and \( v \) is the velocity of the body.
- Kinetic Energy (KE) is defined as \( KE = \frac{1}{2} mv^2 \).

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