Question

PLS solve it fast
3rd question.​

Answer 1

2 x. 10^6 is your answer mate

Answer 2

the answer to this question is 2x10^4
process
mass of bullet 0.03kg
speed 400m/s
kinetic energy of bullet 1/2x0.03x400^2
=2400 J
Kinetic energy of bullet =potential energy of wood
2400=mgh(of wood)
h=12cm=0.12m
2400=mgx0.12
mg=2400/0.12
mg=20000
mg=force
force =2x10^4
hope it helps