| An asteroid traveling through space collides with one end of a long, cylindrical satellite as shown and sticks to the satellite. Which of the following is true of the isolated asteroid-satellite system in this collision? |
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A) Kinetic energy K is conserved
B) Total Energy E is conserved, but angular momentum L is not conserved
C) Angular momentum L is conserved, but linear momentum P is not conserved
D) Angular momentum L is conserved, and total energy E is conserved
Correct Answer: D
Solution :
For isolated systems, all three conservation laws are always in effect: total energy is conserved (although kinetic energy K is not conserved in this perfectly inelastic collision), linear momentum is conserved, and angular momentum is conserved.
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