A Space Vehicle of Mass M Has a Speed V

question 5

Multiple Choice

A space vehicle of mass m has a speed v. At some instant, it separates into two pieces, each of mass 0.5m. One of the pieces is at rest just after the separation.
-Which one of the following statements concerning this situation is true?

• A)The moving piece has speed 2v.
• B)This process conserves kinetic energy.
• C)The piece at rest possesses kinetic energy.
• D)The process does not conserve total energy.
• E)This process does not conserve momentum.

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