In SHM , can we have maximum positive acceleration?

[Outrageous]

In SHM , we can only have negative acceleration, and maximum accelration is zero.
Is that correct?
What is the maximum acceleration here?
http://answers.yahoo.com/question/index?qid=20110207103646AAij3SF

Thank you.

 

[nasu]

No, the acceleration has a harmonic (sine or cos) dependence of time.

 

[Outrageous]

O yup :shy:, thank you