Question

A bullet moving with a speed of can just penetrate into two planks of equal thickness. Then, the number of such planks the bullet will penetrate, if speed is doubled will be

A

6

B

20

C

4

D

8

Hard

Solution

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Correct option is D)



Thus,
If v is doubled, n will become four times.
Therefore the bullet will penetrate 8 planks.

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Solution To Question ID 117363
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