Could someone please read through my working out?

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SUMMARY

The discussion revolves around a physics problem involving the conservation of momentum during the separation of a space vehicle into two sections. The vehicle initially travels at 6000 km/h and separates into a 1200 kg section moving at 6200 km/h and a 300 kg section. The calculations presented indicate a momentum of 7140000 for the lighter section and 1860000 for the heavier section, leading to a calculated velocity of 3.84 m/s for the heavier section. However, there is confusion regarding the correctness of the velocities and the application of momentum conservation principles.

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Homework Statement



Could someone please read through my work to make sure I have worked this out correctly, please see the images below for my working out.

A space vehicle traveling at a velocity of 6000km/h separates by detonation of explosive bolts, into two sections of mass 1200 kg and 300 kg. The two parts continue moving in the same direction with the lighter section moving at 6200km/h. Making use of the principle of conservation of momentum, determine the velocity of the heavier section after separation

Homework Equations



upload_2018-1-21_14-7-10.png
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The Attempt at a Solution



upload_2018-1-21_14-8-59.png
 

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Please see my working for

^M=mx^v

^M= 7140000
m= 1860000
^v= 3.84 m/s
 
Which problem do you need help on? The problem in post #1 makes little sense. If the ejected mass has more momentum than before, then the space vehicle will have less momentum than before. Usually, this type of maneuver is intended to boost the momentum of the space vehicle. Are you sure that the velocities are correct and relative to the lab frame?
NotVerySmart said:
Please see my working for

^M=mx^v

^M= 7140000
m= 1860000
^v= 3.84 m/s
I am not sure I understand what you are asking us to do here. Are these new masses? Please explain.
 

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