2. A 3-kg firework flies in a straight line with an initial velocity of 150 m/s and bursts into two pieces in mid-air. One piece is 1 kg and keeps going forward at 200 m/s. (a) What is the velocity of the second piece? (b) What is the energy released in the explosion? (c) Assuming the explosion occurred 200 m above ground, how far apart from each other do the two pieces land?

2. A 3-kg firework flies in a straight line with an initial velocity of 150 m/s and bursts into two pieces in mid-air. One piece is 1 kg and keeps going forward at 200 m/s. (a) What is the velocity of the second piece? (b) What is the energy released in the explosion? (c) Assuming the explosion occurred 200 m above ground, how far apart from each other do the two pieces land?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter11: Collisions

Section: Chapter Questions

Problem 9PQ

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Question

2. A 3-kg firework flies in a straight line with an initial velocity of 150 m/s and bursts
into two pieces in mid-air. One piece is 1 kg and keeps going forward at 200 m/s.
(a) What is the velocity of the second piece?
(b) What is the energy released in the explosion?
(c) Assuming the explosion occurred 200 m above ground, how far apart from each
other do the two pieces land?

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