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Two thin wood screens A and B are separa...

Two thin wood screens `A` and `B` are separated by `200m` a bullet travelling horizontally at speed of `600 m//s` hits the screen `A` penetrates through it and finally emerges out from `B` making holes in `A` and `B` the resistance of air and wood are negligible the difference of heights of the holes in `A ` and `B` is.

A

`5 m`

B

`49/90m`

C

`7/sqrt90m`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
B
`R=usqrt((2h)/g),h=h_(1)-h_(2)`
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