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    1. Physics 211 Lecture 11, Slide 1

    2. Physics 211 Lecture 11, Slide 2

    3. Physics 211 Lecture 11, Slide 3

    4. Physics 211 Lecture 11, Slide 4

    5. Physics 211 Lecture 11, Slide 5

    6. Physics 211 Lecture 11, Slide 6

    7. Physics 211 Lecture 11, Slide 7 A wood block rests at rest on a table. A bullet shot into the block stops inside, and the bullet plus block start sliding on the frictionless surface. The momentum of the bullet plus block remains constant A) Before the collision. B) During the collision C) After the collision D) All of the above E) Only A and C above

    8. Two men, one heavier than the other, are standing at the center of two identical heavy planks. The planks are at rest on a frozen (frictionless) lake. The men start running on their planks at the same speed. Which man is moving faster with respect to the ice?

    9. Physics 211 Lecture 11, Slide 9 Suppose you are on a cart initially at rest that rides on a frictionless track. If you throw a ball off the cart towards the left, will the cart be put into motion? A) Yes, and it moves to the right. B) Yes, and it moves to the left. C) No, it remains in place.

    10. Physics 211 Lecture 11, Slide 10 Suppose you are on a cart which is initially at rest that rides on a frictionless track. You throw a ball at a vertical surface that is firmly attached to the cart. If the ball bounces straight back as shown in the picture, will the cart be put into motion after the ball bounces back from the surface?

    11. Physics 211 Lecture 11, Slide 11

    12. Physics 211 Lecture 11, Slide 12 Suppose you are on a cart that is moving at a constant speed V toward the left on a frictionless track. If you throw a massive ball straight up (relative to the cart), how will the speed of the cart change? A) Increase B) Decrease C) Will not change

    13. Physics 211 Lecture 11, Slide 13 A car with a mass M is moving toward another car with a mass 2 M on a frictionless surface. Both cars have a speed of 10 m/s. Subsequently, they collide and stick together. What is the final velocity of the two car system?

    14. Two balls of equal mass are thrown horizontally with the same initial velocity. They hit identical stationary boxes resting on a frictionless horizontal surface. The ball hitting box 1 bounces back, while the ball hitting box 2 gets stuck. Which box ends up moving faster?

    15. Which box ends up moving faster?

    16. Physics 211 Lecture 11, Slide 16 Two equal-mass balls swing down and hit identical bricks while traveling at identical speeds. Ball A bounces back, but ball B just stops when it hits the brick. Which ball is more likely to knock the brick over? A) A B) B C) They both have the same chance.

    17. Physics 211 Lecture 11, Slide 17

    18. Physics 211 Lecture 11, Slide 18 Ballistic Pendulum

    19. Physics 211 Lecture 11, Slide 19

    20. Physics 211 Lecture 11, Slide 20

    21. Physics 211 Lecture 11, Slide 21

    22. Physics 211 Lecture 11, Slide 22 Ballistic Pendulum

    23. Physics 211 Lecture 11, Slide 23 Ballistic Pendulum Demo