A 10-G Bullet Moving 1000 M/s Strikes and Passes Through

Multiple Choice

A 10-g bullet moving 1000 m/s strikes and passes through a 2.0-kg block initially at rest, as shown. The bullet emerges from the block with a speed of 400 m/s. To what maximum height will the block rise above its initial position? ​ ​

A) 78 cm
B) 66 cm
C) 56 cm
D) 46 cm
E) 37 cm