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Momentum = (mass) x (velocity), in the same direction as the velocity.

Spaceship-1 . . . Momentum = (150) x (0) = 0 kg-m/sec, in some direction.

Spaceship-2 . . . Momentum = (150) x (6) = 900 kg-m/sec, in the same direction.

Their combined momentum = 900 kg-m/sec, in their common direction.

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9y ago
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Vivian Rangel

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2y ago
3 m/s actually is correct

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Q: Spaceship 1 and Spaceship 2 have equal masses of 150 kg Spaceship 1 has a speed of 0 m s and Spaceship 2 has a speed of 6 m s They collide and stick together What is their speed?
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