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What is the speed of the block as it leaves the table?

  1. Jan 18, 2005 #1
    Hi, I really need help on the following questions and would appreciate it if someone could ASAP!!! Thank you!!!

    1) a bullet of mass m is moving horizontally with speed v when it hits a block of mass 100m that is at rest on a horizontal frictionless table. The surface of the table is a height h above the floor. After the impact the bullet and the block slide off the table and hit the floor a distance x from the edge of the table.

    a) What is the speed of the block as it leaves the table?
    b) What is the change in kinetic energy of the bullet-block system during impact?
    c) What is the distance x ?

    Suppose the bullet passes through the block instead of remaining in it.

    d) State whether the time required for the block to reach the floor from the edge of the table would now be greater, less, or the same. Justify your answer.
    e)State whether the distance x for the block would now be greater, less or the same. Justify your answer.

    THANK YOU SOOOOOO MUCH!!!! I really needed help.
  2. jcsd
  3. Jan 18, 2005 #2
    1) Wrong forum.

    2) show us what you have done first, and we'll try to help you from there.
  4. Jan 18, 2005 #3


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    Homework Helper

    He/she quadruple posted this at the same time then got testy when I called him/her on it. Help has already been provided in the homework fora.
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