should professor messer pull the tablecloth quickly or slowly? Explain the physics of this trick, using the correct scientific words
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Answer:
If the tablecloth is pulled slowly, friction (rubbing) between the beaker and tablecloth will cause the tablecloth to pull the beaker with it. But, if the tablecloth is pulled quickly, the beaker won't mover. Inertia keeps the beaker in place because friction is not as strong when you pull fast.
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Explanation:
The force in this activity pulling on the glass of water is the friction between the tablecloth and the glass. Since the tablecloth and glass are slippery, the friction is quite small — it's enough to pull the glass along slowly, but not enough to accelerate the glass quickly when you snap the cloth fast!
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