Question

how do do an experiment on upthrust ​

Answer 1

Answer:

. If a closed hollow tin or a ball is pushed below the surface of water, an upward force is felt on the hand. If the ball or tin is released, it bounces upwards and jumps over the surface, showing that an upthrust is acting on it.

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2. If a piece of cork of density 0.25 g cm-3 is held under water and released, it pops up automatically, and starts floating on the surface. A piece of iron of density 7.8 g cm-3 will sink. A substance less dense than water floats automatically. Substances more dense will sink, but can also float if flattened out and made shell-like. Thus, a ship made of iron can float while a lump of iron sinks. The floating of a body depends on the upthrust acting on it.

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Answer 2

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