A body starts from rest and travels ' s ' m in 2 text nd second, then acceleration is

Question

A body starts from rest and travels ' s ' m in 2 text nd second, then acceleration is (A) 2 s m / s 2 (B) 3 s m / s 2 (C) (2/3) s m / s 2 (D) (3/2) s m / s 2

Tardigrade Admin · Accepted Answer

S n = u +( a /2)(2 n -1) or, S=(a/2)(2 × 2-1) ⇒ a=(2/3) m / s2

Q. A body starts from rest and travels ' $s$ ' $m$ in $2^{nd}$ second, then acceleration is

$2 s m / s^{2}$

$3 s m / s^{2}$

$\frac{2}{3} s m / s^{2}$

$\frac{3}{2} s m / s^{2}$

$S_{n} = u + \frac{a}{2} (2 n - 1)$
or, $S = \frac{a}{2} (2 \times 2 - 1)$
$\Rightarrow a = \frac{2}{3} m / s^{2}$

Q. A body starts from rest and travels ' s ' m in 2nd second, then acceleration is

2sm/s2

3sm/s2

32​sm/s2

23​sm/s2