A comet is traveling through space with a speed of 3.00 ✕ 104 m/s when it collides with an asteroid that was at rest. The comet and the asteroid stick together during the collision process. The mass of the comet is 1.45 ✕ 1014 kg, and the mass of the asteroid is 6.55 ✕ 1020 kg. (a) What is the speed of the center of mass of the asteroid–comet system before the collision? m/s (b) What is the speed of the system's center of mass after the collision?

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