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In the equation of motion, \( \boldsymbol{S}=\boldsymbol{u} \boldsymbol{t}+ \) \( 1 / 2 a t^{2}, \) S stands for

1. displacement in t seconds
2. maximum height reached
3. displacement in the \( t^{t h} \) second
4. none of these

Correct answer: displacement in t seconds

Solution

In the equation \(S=ut+\tfrac12 at^2\), \(S\) represents the total displacement covered in time \(t\) under uniform acceleration. It is not the displacement in the \(t^{th}\) second, which uses a different formula.

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