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Momentum = (mass) x (speed)

At the moment when the momentum of Spaceship-1 is 900 kg-m/s,

900 kg-m/s = (150kg) x (its speed).

Divide each side by (150 kg): Its speed = (900 kg-m/s / 150 kg) = 6 m/s .

If its speed changes, then its momentum also changes.

We don't need to know anything about Spaceship-2 in order to answer this question.
We don't even need to know that is exists. We suspect that there were originally one
or more additional parts to the question, which became separated from it and drifted away.

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Spaceship 1 and Spaceship 2 have equal masses of 300 kg Spaceship 1 has an initial momentum magnitude of 600 kg ms What is its initial speed?

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Space ship one and spaceship to have equal masses of 150 KG spaceship one has an Intel him moments of magnitude of 900 KG what is its initial speed?

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Spaceship 1 and spaceship 2 have equal masses of 300kg. spaceship 1 has an initial momentum magnitude of 9000kg-ms. what is the initial speed?

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