1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Plss help/its about momentum

  1. May 23, 2010 #1
    Use the diagram below to answer the next three questions (3-5).
    Two blocks, A and B travelling towards each other with equal momenta on a frictionless surface are separated by a spring of negligible mass. The mass of block A is twice that of block B.
    Compared with the total momentum of the blocks before the collision, the total momentum after the collision is:

    a) the same

    b) one-half as great

    c) twice as great

    d) four times as great
    Use the diagram below to answer the next three questions (3-5).
    Two blocks, A and B travelling towards each other with equal momenta on a frictionless surface are separated by a spring of negligible mass. The mass of block A is twice that of block B.
    After the collision, the magnitude of the momentum of block A compared with that of block B is

    a) one-half as great

    b) twice as great

    c) four times as great

    d) the same
    Use the diagram below to answer the next three questions (3-5).
    Two blocks, A and B travelling towards each other with equal momenta on a frictionless surface are separated by a spring of negligible mass. The mass of block A is twice that of block B.
    After the collision, the magnitude of the velocity of block A compared with that of block B is

    a) the same

    b) twice as great

    c) one-half as great

    d) four times as great
     

    Attached Files:

  2. jcsd
  3. May 23, 2010 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi box17! Welcome to PF! :wink:

    (to clarify: the 3 questions are the same, except that they ask for 1. total momentum 2. compare the momentums 3. compare the velocities)

    Tell us what you think the answers are, and then we'll comment.

    Start with 1. and 2. :smile:
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Plss help/its about momentum
  1. Need help plss (Replies: 1)

  2. Homework Plss Help! (Replies: 1)

  3. Help plss (Replies: 1)

Loading...