act16 - Activity 16: Impulse Momentum & Collisions...

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Activity 16: Impulse Momentum & Collisions March 13, 2008 What's Your Intuition? Your house is on fire and smoke is pouring into your partially open bedroom door. The room is so messy that you cannot get to the door. The only way to close the door is to throw either a blob of clay or a superball at the door—there's not time to throw both. What Packs the Biggest Wallop—Clay or the Superball? Assuming the clay blob and the superball have the same mass, what would you throw to close the door? The clay blob which will stick to the door or the superball which will bounce back at almost the same velocity as it had before it collided with the door? Give reasons for your choice. Remember, your life depends on it. Draw an arrow representing the initial momentum of the clay ball as it first reaches the door and another arrow representing the momentum the instant the ball sticks to the door. Then draw a third arrow representing the change in momentum of the clay ball.
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act16 - Activity 16: Impulse Momentum & Collisions...

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