Question

8. A bullet emerges from a barrel of length 1.2 m with a
speed of 640 ms. Assuming contant acceleration,
the approximate time that it spends in the barrel after
the gun is fired is
(a) Is (b) 40 ms (c) 400 us (d) 4 ms
9. A bullet fired into a fixed target loses half of its velocity
after penetrating 3 cm. How much further it will
penetrate before coming to rest assuming that it faces
constant resistance to motion
(a) 1.0 cm (b) 1.5 cm (c) 2.0 cm (d) 3.0 cm​

Answer 1

Answer:

please refer to the attached photo,

Hope you will be able to understand.