Two paper screens `A` and `B` are separated by a distance of `100m`. A bullet pierces `A` and `B`. The hole in `B` is `10 cm` below the hole in `A`. If the bullet is travelling horizontally at the time of hitting the screen `A`, calculate the velocity of the bullet when it hits the screen `A`. Neglect resistance of paper and air.

Options

A. `980 ms^(-1)`
B. ` 500 ms^(-1)`
C. `700 ms^(-1)`
D. `490 ms^(-1)`

Answer

C