If a man increase his speed by 2m/s, his K.E. is doubled, the original speed of the man is

Explanation

To solve the problem, we need to find the original speed of a man whose kinetic energy doubles when he increases his speed by 2 m/s. Let's go through the solution step by step.

### Step 1: Define the variables
Let:
- \( v \) = original speed of the man (in m/s)
- \( m \) = mass of the man (in kg)

### Step 2: Write the formula for kinetic energy
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