A particle moves in a circular path with a continuously increasing speed. Its motion is
Since the speed of particles is increasing the time it takes to complete one revolution will decrease every
cycle.Since the time period is not constant the motion can't be periodic.
For motion to be oscillation the particle has to go to and fro about a mean position.Here the particle
maintains its direction of motion. It doesn't go to and fro. There is no point of equilibrium. No restoring
force.So not oscillation.
SHM-(1) is special type of oscillation
(2) particle should oscillate on a stright line clearly the motion is not SHM
Hence none of these