In what time after its motion began, will a particle oscillating according to the equation x = 7 sin (0.5 pit)move from the mean position to the maximum displacement ?

In what time after its motion began, will a particle oscillating accor

1.	In what time after its motion began, will a particle oscillating according to the equation x = 7 sin (0.5 pit)move from the mean position to the maximum displacement ?
Answer» SOLUTION :`OMEGA=(2pi//T)=0.5 PI,T=4s,T//4=1` SECOND