Ballistic Pendulum: a Bullet (Mass M = 100 G)hits a Wood

Multiple Choice

Ballistic pendulum: A bullet (mass m = 100 g) hits a wood block of mass 9.9 kg,handing from two long cords.The bullet has an initial velocity of 500 m/s.The velocity of the bullet/block combination after this totally inelastic collision is then

A) 5 m/s.
B) 0 m/s.
C) 99 m/s.
D) 500 m/s.
E) 10 m/s.