Compute each part of given question:
Question: A 1.05kg block is attached to a spring with spring constant 18N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 30 cm/s.
Part I: What is the amplitude of the subsequent oscillations?
Part II: What is the block's speed at the point where x= 0.25 A?
Please show all work so I can fully understand all concepts! Thank you.