Question

A body starts from rest and travels ‘*’ m in 2nd second, then acceleration is

(a) 2sm/s2

(b) 3sm/s2

(c) 2/3sm/s2

(d) 3/2sm/s2

Answer 1

Correct option (c) 2/3sm/s2

Explanation:

Sn = u + a/2(2n - 1)

or, * = a/2(2 x 2 - 1) ⇒ a = 2/3m/s2