Question

A particle in S.H.M. is described by the displacement function 

x(t)=acos(ωt+θ)

. If the initial 

(t=0)

 position of the particle is 1 cm and its initial velocity is 

πcm/s

. The angular frequency of the particle is 

πrad/s

, then it?s amplitude is        

Answer 1

this is physics standard numeral so