Two paper screens $A$ and $B$ are separated by a distance of 200 m. A bullet pierces $A$ and then $B$. The hole in $B$ is 40 cm below the hole in $A$. If the bullet is travelling horizontally at the time of hitting $A$, then the velocity of the bullet at $A$ is

Question

Dr. Abubacker · Accepted Answer

(d) $200 = ut$
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or $t = 200/u$
Also, $\frac{40}{100} = \frac{1}{2} 	imes 9.8\left( \frac{200}{u} ight)^{2}$
On solving $u = 700\ ms^{- 1}$

Q. Two paper screens $A$ and $B$ are separated by a distance of 200 m. A bullet pierces $A$ and then $B$. The hole in $B$ is 40 cm below the hole in $A$. If the bullet is travelling horizontally at the time of hitting $A$, then the velocity of the bullet at $A$ is

Explanation

Reviewed by Dr. Abubacker

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