Question

Fig. (11)
(d) A machine gun bullet of mass 100 gm is fired with
a velocity of 400 m/s, What is the kinetic energy of
the bullet? If the bullet can penetrate 20 cm in a
block of wood. What is the average resitance of the
wood? What will be the exit velocity of the bullet if
fired into similar block of wood 10 cm thick?
7​

Answer 1

Answer:

hope u understand.........

ohh sorry exit velocity is 4 root 2 time 10^2 not 2 root 2 times 10^2

sorry for mistake