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PhysicsNLMSimple Application of NLMMedium2 minQB

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When you pull a tablecloth out from under a set of dishes, it's important to pull the cloth as fast as possible because

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Answer:

Solution:

The cloth exerts an almost constant (kinetic friction) force $F$ on the dishes for the time $t$ it slides under them.

Impulse-momentum: $Ft = Δ p$ , so the momentum transferred to the dishes is proportional to the time the cloth is in contact. Pulling fast makes $t$ small, so the dishes gain very little momentum.

Stream:JEESubject:PhysicsTopic:NLMSubtopic:Simple Application of NLM

⏱ 2mℹ️ Source: QB

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