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when a falling firecracker explodes, the momenta of its pieces _______.
Physics- Test 2 (Chapters 6-7) Flashcards | Quizlet
Web A firecracker bursts while freely falling. The combined momentum of its fragments A) cancels to the firecracker's momentum at the time of bursting. B) cancels to zero. C) equals the momentum of the firecracker at the time of burst D) none of the above
Halliday & Resnick - Fundamentals Of Physics (11th Ed.) …
Web Its acceleration is a(0) = 0 because just then the particle’s velocity is not changing (Fig. 2-8a). For 0 0 does it first reach an edge of the screen? 72 A rock is shot vertically upward from the edge of the top of a tall building. The rock reaches its maximum height above the top of the building 1.60 s after being shot.
Chapter 8 Flashcards | Quizlet
Web A firecracker breaks up into several pieces, one of which has a mass of 200 g and flies off along the x-axis with a speed of 82.0 m/s. A second piece has a mass of 300 g and flies off along the y-axis with a speed of 45.0 m/s. What are the magnitude and direction of the total momentum of these two pieces?
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