an 8 g bullet is fired from a rifle . the bullet passes through a 10 cm plank. this reduces the bulle's velocity from 400 m/s west to 300 m/s west
a) calculate the bullet's initial momentum.
b) calculate the bullet's final momentum
c) calculate the bullet's change in momentum
d) draw a labbed vector diagram to illustrate the bullet's initial, final and chamge in momentum vectors ​