The displacement of a particle varies with time according to the relation
y = a sin ωt + b cos ωt.
1
The motion is oscillatory but not S.H.M
2
The motion is S.H.M. with amplitude a + b.
3
The motion is S.H.M. with amplitude a2 + b2.
4
The motion is S.H.M. with amplitude \(\sqrt {{a^2} + {b^2}} \)