Question

Two paper screens A and B are separated by
distance 100 m. A bullet penetrates A and B, at
points P and Q respectively, where Q is 10 cm
below P. If bullet is travelling horizontally at the
time of hitting A, the velocity of bullet at A is
nearly
(1) 100 m/s
(2) 200 m/s
(3) 600 m/s
(4) 700 m/s​

Answer 1

if bullet penetrates A first then it is 100 m/s