Block 1 and block 3 have masses of M1 = M3 = 3.0 kg and block 2 has a mass of M2 = 6.0 kg. Block 1 is travelling with a speed of 2.0 m/s towards block 2, while blocks 2 and 3 are stationary. If the collision between blocks 1 and 2 is elastic, and collision between blocks 2 and 3 is perfectly inelastic, v What are the final speeds of the three blocks?

What fraction of the total initial kinetic energy is lost in the collisions?

What is the impulse delivered to block 2 after the first collision?