The phase of a particle executing simple harmonic motion is π2 when it has
[MP PET 1985]
Maximum velocity
Maximum acceleration
Maximum energy
Maximum displacement
For S.H.M. displacement y=asin ωt and
Acceleration A=−ω2ysin ωt these are maximum at ωt=π2
A body executing simple harmonic motion has a maximum acceleration equal to 24 metres/sec2 and maximum velocity equal to 16 meters/sec. The amplitude of the simple harmonic motion is
[MP PMT 1995; DPMT 2002; RPET 2003; Pb. PET 2004]