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Why is a force needed to keep a block of cork inside water? - Physics

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Question

Why is a force needed to keep a block of cork inside water?
One Line Answer

Solution

When a block of cork is immersed in water buoyant force acts on it in an upward direction so to overcome this force we have to apply an equal force in a downward direction to keep a block of cork inside water.
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Chapter 4: Fluids - Exercise 2 [Page 173]

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Frank Physics [English] Class 9 ICSE
Chapter 4 Fluids
Exercise 2 | Q 5 | Page 173
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