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## Homework Statement

Had to translate the original problem statement in order to post it here; sorry about the grammar.

Block 1 has a mass m1=2.00kg, moving to the right (along the x-axis) with an initial velocity vi1=10.0 m/s. Block 2 has a mass m2=5.00kg and is moving in the same direction as block 1, with an initial velocity v2i = 3.00 m/s. The surface is frictionless.

Block 2 is equipped with an ideal spring with Ks=1.12 kN/m.

When the two blocks collide, the spring will first compress, then expand to it's equilibrium position. The masses will then move independently.

The compression of the springs will have it's greatest value when the masses are moving with uniform velocity.

The collision is elastic.

Find the maximum compression of the spring.

## Homework Equations

I know that when we model the collision as elastic, both the kinetic energy and the linear momentum of the system is preserved.

delta

**P**=0

delta k = 0

## The Attempt at a Solution

Tried to use the formulas above, and solve the system of equations. The problem would be very easy to solve, without the spring.

Thanks in advance. :)