The periodic time of a body executing simple harmonic motion is 3 sec. After how much time from time `t=0` , its displacement will be half of its amplitude

The periodic time of a body executing SHM is 2s. After how much time interval from t=0, will its displacement be half of its amplitude?

The periodic time of a particle executing S.H.M. is12 second.After how much intervalfrom t=0 will its displacement be half of its amplitude ?

The periodic time of a particle executing S.H.M. is12 second.After how much intervalfrom t=0 will its displacement be half of its amplitude ?

A body is executing simple harmonic motion with time period of 3 s. After how much time interval (from t = 0) the displacement will be (1)/(sqrt(2)) times of its amplitude ?

A particle executing simple harmonic motion has a time period of 4 s. If the particle starts moving from the mean position at t = 0, then after how much interval of time from t = 0, will its displacement be half of its amplitude ?

For a particle executing simple harmonic motion, the amplitude is A and time period is T. The maximum speed will be