1. What kind of collision does conserve momentum? What kind of collision does not conserve mechanical energy?
2. A bullet with a mass of 52 grams moving with a speed of 100 m/s slams into and wedges in a 1.8 kilogram block of wood initially at rest. The block is supported by a string as in the diagram to the right. Which one, conservation of energy or conservation of momentum, can be applied to this situation? Why?
*The diagram just shows a block hanging from the ceiling from a string.
3. How high does the block in problem #2 swing after being hit by the bullet?