9. A ballistic pendulum malfunctions, and the bullet collides elastically with the pendulum (instead of being...

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9. A ballistic pendulum malfunctions, and the bullet collides elastically with the pendulum (instead of being caught by the pendulum). How does this affect the motion of the pendulum? a. It doesn't swing as high. b. It swings to the same height. c. It swings higher. d. Can't answer without knowing the masses. (Ans: (c) it swings higher. Since the bullet bounces back, the pendulum must be given extra forward momentum.) 10. In the malfunctioning ballistic pendulum above, the bullet has a mass of 5 grams and a speed of 100 m/s. The pendulum has a mass of 2 kg and a length of 0.5 m. To what angle (from vertical) does the pendulum swing? (Ans: 12.9 Intermediate result: vp = 0.4988 m/s at the bottom of the swing) 9. A ballistic pendulum malfunctions, and the bullet collides elastically with the pendulum (instead of being caught by the pendulum). How does this affect the motion of the pendulum? a. It doesn't swing as high. b. It swings to the same height. c. It swings higher. d. Can't answer without knowing the masses. (Ans: (c) it swings higher. Since the bullet bounces back, the pendulum must be given extra forward momentum.) 10. In the malfunctioning ballistic pendulum above, the bullet has a mass of 5 grams and a speed of 100 m/s. The pendulum has a mass of 2 kg and a length of 0.5 m. To what angle (from vertical) does the pendulum swing? (Ans: 12.9 Intermediate result: vp = 0.4988 m/s at the bottom of the swing)

Answer rating: 100% (QA)

Given Mass of the bullet m1 5 grams 0005 kg Speed of the bullet v1 100 ms Mass of the pendulum m2 2 ... View the full answer