Two paper screens A and B are separated by a distance of 100 m. A bullet pierces A and then 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 the resistance of paper and air.

Two paper screens A and B are separated by a distance of 100 m. A bull

1.	Two paper screens A and B are separated by a distance of 100 m. A bullet pierces A and then 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 the resistance of paper and air.
Answer» Solution :The situation is shown in fig. `d = usqrt((2(h_(1)-h_(2)))/(G))` `100 = u SQRT((2 XX 0.1)/(9.8))` `u = 700 m//s`