A small bullet is fired into a large piece of wood. After the bullet penetrates the wood,
Question:
A small bullet is fired into a large piece of wood. After the bullet penetrates the wood, the assembly moves as one unit along a low-friction track in the direction of travel of the bullet.
(a) After the bullet is stuck in the piece of wood, is the momentum of the wood (not including the bullet) greater than, equal to, or less than the initial momentum of the bullet? State any assumptions explicitly.
(b) Is the combined kinetic energy of the bullet and the wood after the bullet is stuck in the wood greater than, equal to, or less than the initial kinetic energy of the bullet?
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a To answer this question lets consider the principle of conservation of momentum According to this ...View the full answer
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