A firework shot into the air follows a parabolic path and explodes into 100 piec

Question

A firework shot into the air follows a parabolic path and explodes into 100 pieces at its maximum height. Which of the following is true of the pieces immediately following the explosion? (A) The total kinetic energy of the pieces is equal to the kinetic energy of the firework just before the explosion. (B) The center of mass the pieces falls straight down at 9.8 m/s^2. (C) The center of mass of the pieces continues on the same parabolic path that the firework had before the explosion. (D) The speed of the center of mass of the pieces has increased as a result of the explosion.

Explanation / Answer

In parabolic motion the center of mass of pieces follows parabolic path just before explosion.

Therefore, the answer is C.

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