A particle moves in a straight line with constant acceleration If it covers 10 m in first second and 20 m in next second find its initial velocity.

Explanation

To solve the problem of finding the initial velocity of a particle moving with constant acceleration, we can use the equations of motion. Let's break it down step by step.

### Step 1: Understand the problem
The particle covers:
- 10 meters in the first second (s₁ = 10 m, t₁ = 1 s)
- 20 meters in the next second (s₂ = 20 m, t₂ = 1 s)

We need to find the initial velocity (u) of the particle.
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