Question

. A bullet when fired at a target with a velocity of
100 m/sec penetrates one metre into it. If the
bullet is fired at a similar target with a thickness
0.5 metre, then it will emerge from it with a
velocity of:​

Answer 1

if 1metre can be penetrated from the velocity of 100 m/s, then

0.5 m can be penetrated from the velocity of 100*0.5=50

therefore velocity is 50m/s.

I hope it helps you.

Answer 2

Answer:

answer will be = 50√2 = 70.7.......

Explanation:

apply v2-u2=2as

make 2eqn take u =100

and devide 2eqn you will get the answer.....