A 160g hockey puck swings around on a spring

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A 160g hockey puck swings around on the end of a spring on a frictionless surface. One end of the spring is attached to the hockey puck, and the other is attached to a fixed pivot point. The spring has a constant of 25N/m and an equilibrium length of 1m and stretches a distance of 10com.

a.what is the magnitude of the acceleration of the hockey puck?

b. what is the magnitude of the velocity of the hockey puck?

I have no clue how to approach this question due to the spring. If the spring wasn't a part of it i would have an understanding. please help!
 
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Hmm, this is a strange question. Let me clarify something from you, do you know explicitly that the hockey puck is moving in a circle (as I am about to assume)? If so, the fact that there's a spring makes no difference in terms of centripetal acceleration. You'll have a different tension than if the puck were on a rigid string.
 

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