Question

A bullet of mass 0.01 kg is fired into a sandbag of mass 0.49 kg hanging from a tree .The sandbag, with the bullet embedded into it, swings away at 10m/s.

find:
a.The momentum after the collision.
b.The momentum before the collision.
c.The velocity of the bullet.​

Answer 1

B is the best option but A is also good it's up to you but I'm leaning more towards B

Answer 2

momentum after=momentum before

momentum before=Mbullet*Vbullet

Momentum after=(.49+.01)10=Mb*Vb

solve for V bullet