Question

Displacement of a mass in a vibrating mass spring system is described as x=cos (pi÷8)t Its displacement after 2 seconds will

Answer 1

Given:- x = cos(π/8)t

put t = 2 , x = cos (π/8)2

=>x = cos(π/4) = 1/✓2

hence, it's displacement after 2 seconds is 1/✓2