A particle moving along a straight line with initial velocity u and acceleration a continues its motion for n seconds. What is the distance covered by it in the last `n^(th)` second ?

Explanation

To find the distance covered by a particle in the last \( n^{th} \) second of its motion, we can follow these steps:

### Step 1: Understand the motion equations
The distance covered by a particle under uniform acceleration can be calculated using the equation of motion:
\[ s = ut + \frac{1}{2} a t^2 \]
where:
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