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Tuesday Warm-Up Review of Momentum, Impulse, and Collisions

Tuesday Warm-Up Review of Momentum, Impulse, and Collisions. THINK. PAIR. SHARE. Two identical automobiles have the same speed, one traveling east and one traveling west. Do these cars have the same momentum?

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Tuesday Warm-Up Review of Momentum, Impulse, and Collisions

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  1. Tuesday Warm-UpReview of Momentum, Impulse, and Collisions THINK PAIR SHARE Two identical automobiles have the same speed, one traveling east and one traveling west. Do these cars have the same momentum? You have a choice: get hit head on either by an adult moving slowly on a bicycle or by a child moving twice as fast. The mass of the child+bicycle is ½ that of the adult+bicycle. In movies, Superman hovers in midair, grabs a villain by the neck, and throws him forward. Superman, however, remains stationary. Using the conservation of linear momentum, explain what is wrong with this scene.

  2. Explosion Example #1 Two Carts • A thread holds two carts together that are separated by a compressed spring. The thread is broken. One cart, with mass of 1.5 kg, moves with a velocity of 27 cm/s to the left. What is the velocity of the other cart with mass of 4.5 kg?

  3. Explosion Example #2 The man and the boat • A 75 kg man is standing in a 10 kg boat which is initially stationary. If he walks toward the back of the boat at 2 m/s, what is the speed that the boat moves forward?

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