A 0.400-kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 23.0 N/m. The block rests on a friction less surface. A 5.10×10?2-kg wad of putty is thrown horizontally at the block, hitting it with a speed of 2.50 m/s and sticking.
Part A How far does the putty-block system compress the spring?
(In cm)