Inelastic Collisions

by patelkey
Tags: collisions, inelastic
 P: 16 1. The problem statement, all variables and given/known data In the figure below, block 2 (mass 1.4 kg) is at rest on a frictionless surface and touching the end of an unstretched spring of spring constant 170 N/m. The other end of the spring is fixed to a wall. Block 1 (mass 2.0 kg), traveling at speed v1 = 4.0 m/s, collides with block 2, and the two blocks stick together. When the blocks momentarily stop, by what distance is the spring 2. Relevant equations m1v1=m2v2 3. The attempt at a solution I attempted the solution but I am confused about the 170N/m How would I use that information and relate it to the equations of inelastic collision?
 HW Helper P: 4,430 Find the velocity of the combined blocks after collision. Then find the KE of the the combined blocks. What is the expression for the energy stored in a compressed spring?
 P: 16 ohhh okk i got it I had to use W=1/2kx^2 they gave k and i figured out W through the KE equation. it was 0.33 m if you were curious.

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