A vertical spring (ignore its mass), whose spring stiffness constant is 900 N/m, is attached to a table and is?

A vertical spring (ignore its mass), whose spring stiffness constant is 900 N/m, is attached to a table and is compressed down 0.100 m

a) What upward speed can it give to a 0.200 kg ball when released?

b) How high above its original position (spring compressed) will the ball fly?

Thank you!!!
Update: Thanks so much Dr. Zorro! Awesome explanation. I got it! I'll best answer you once they let me =)
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