Question

If a coin is placed on a piece of cardboard resting on a top of a jar it is possible to flick the card away sharply so that the coin fails into the jar. Explain why this is so

Answer 1

This is because of law of inertia, cardboard and coin on it both are at rest but when cardboard is flicked away it come in motion but the coin resting on it tends to be at rest and fall into the jar.

Answer 2

Answer:

A momentary force acts on the card when it is flicked with fingers which causes it to move away. But the coin placed on it is bot does not share the motion at once and continues to stay at rest which is attributed to inertia of rest. Eventually, the coin falls down into the tumbler due to the gravitational pull

Explanation:

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