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Block 1, of mass m1 = 9.70 kg , moves along a frictionless air track with...

Block 1, of mass m1 = 9.70 kg , moves along a frictionless air track with speed v1 = 27.0 m/s . It collides with block 2, of mass m2 = 55.0 kg , which was initially at rest. The blocks stick together after the collision. (Figure 1)

Part A: Find the magnitude pi of the total initial momentum of the two-block system.

Part B: Find vf, the magnitude of the final velocity of the two-block system.

Part C: What is the change ΔK=Kfinal−KinitialΔK=Kfinal−Kinitial in the two-block system's kinetic energy due to the collision?

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