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Q.

A stone falls from a height on sand. If it penetrates more

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a

Resistance to motion is more

b

Resistance to motion is less

c

It does not depend on the extent of penetration

d

A stone never penetrates into sand but only into mud

answer is B.

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Detailed Solution

A stone falls from a certain height on sand if Resistance offered to its

motion is less then it will penetrates more.

So option (b) is correct requirement to meet the task.

But options a, c, d are not relevant conclusions.

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