A 22-G Bullet Moving at 1,200 M/s Is Fired Through

question 66

Multiple Choice

A 22-g bullet moving at 1,200 m/s is fired through a one-kg block of wood emerging at a speed of 100 m/s.What is the change in the kinetic energy of the bullet-block system as a result of the collision assuming the block is free to move?

• A) 0 J
• B) 15.4 kJ
• C) -15.4 kJ
• D) 16 J
• E) ​-128 J

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