A particle starts from rest and moves with a constant acceleration of 2 m/s 2 in a straight line. What is the distance (in meters) covered by the particle in the 5th second of its motion?

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The distance covered in the n -th second is given by the formula: S n ​ = u + 2 a ​ ( 2 n − 1 ) Given u = 0 (starts from rest), a = 2 m/s 2 , and n = 5 . Substituting these values: S 5 ​ = 0 + 2 2 ​ ( 2 × 5 − 1 ) = 1 ( 10 − 1 ) = 9 m

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