A body starts from rest and travels 120 cm in 6th second. The acceleration of the body is

Question

A body starts from rest and travels 120 cm in 6th second. The acceleration of the body is (A) 0.2 m s-2 (B) 0.27 m s-2 (C) 0.218 m s-2 (D) 0.3 m s-2

Tardigrade Admin · Accepted Answer

Using Sn = u + (1/2)a(2n - 1) , we get S6 = u+ (a/2) (2 × 6 - 1) i.e. 1.2 = 0 + (a/2) (11) i.e. a = 0.218 m s-2

Q. A body starts from rest and travels $120 c m$ in $6 t h$ second. The acceleration of the body is