Two rocks collide in outer space. Before the collision, one rock had mass 15 kg and velocity < 4300, -2700, 2600 > m/s. The other rock had mass 10 kg and velocity < -650, 2200, 3650 > m/s. A 1 kg chunk of the first rock breaks off and sticks to the second rock. After the collision the 14 kg rock has velocity < 1500, 350, 2000 > m/s. After the collision, what is the velocity of the other rock, whose mass is now 11 kg? ✓ = m/s
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