Never mind, got it!
For anyone wondering, or with a similar problem: for part (c), set the forces equal: use ma=kx. That x is equilibrium.
For part (e), find the difference between Xmax--what you found using conservation of energy in d (for me it was 0.41 m)--and the x at equilibrium found in...
Homework Statement
A 2-kg block is dropped from a height of 0.45 m above an uncompressed spring. The spring has an elastic constant of 200 N/m and negligible mass. The block strikes the end of the spring and sticks to it.
(a) Determine the speed of the block at impact
(b) Determine the period...