1. Why does the law of conservation of momentum apply to this system containing two billiardballs?____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________2. What is the initial momentum of ball A? Ball B?____________________________________________________________________________________3. After the collision, what is the momentum of ball A? Ball B?____________________________________________________________________________________4. What is the total initial momentum? Compare this initial momentum to the final momentumafter the collision. Explain.________________________________________________________________________________________________________________________________________________________________________5. What is the equation that states the relationship between the initial momentums and finalmomentums of balls A and B?____________________________________________________________________________________6. Compare the vertical components of pAf and pBf. Explain.____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________7. If ball A were replaced with another ball twice the mass of ball A, how would the final totalmomentum change?________________________________________________________________________________________________________________________________________________________________________8. How would pAf be affected if ball A were set in motion at a slower velocity?____________________________________________________________________________________9. How would the final total momentum change if ball B were replaced with another ball that hadtwice the mass of ball B?___________________________________________________________________________________________________________________________________________________________________

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