A block with mass 0.460 kg sits at rest on a light but not longvertical spring that has spring constant 85.0 N/m and one end onthe floor.
a)How much elastic potential energy is stored in the spring whenthe block is sitting at rest on it?
b) A second identical block is dropped onto the first from aheight of 4.10 mm above the first block and sticks to it. What isthe maximum elastic potential energy stored in the spring duringthe motion of the blocks after the collision?
c)What is the maximum distance the first block moves down afterthe second block has landed on it?
