Hey there Sign in to join this conversationNew here? Join for free

Momentum M1

Announcements Posted on
Study Help needs new mods! 14-04-2014
TSR wants you: get involved with Power Hour. 10-04-2014
    • Thread Starter
    • 1 follower


    Could anyone explain why the direct of motion is unchanged? If the answer for the velocity is negative and we took the right side to be positive then surely the direction of motion is changed and our original "guess" for velocity to be the right is incorrect and should instead be to the left, so it's motion is reversed?
    • 1 follower

    the arrow for v for the 5kg mass is wrong [don`t assume anything from the diagram]

    - if the final speed of B is -1, that means that it`s SPEED is 1m^2, but is DIRECTION is opposite to +ve. (it`s still going in the same direction it was) - remember speed is the magnitude of velocity


Submit reply


Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?

    this is what you'll be called on TSR

  2. this can't be left blank
    this email is already registered. Forgotten your password?

    never shared and never spammed

  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. By completing the slider below you agree to The Student Room's terms & conditions and site rules

  2. Slide the button to the right to create your account

    Slide to join now Processing…

    You don't slide that way? No problem.

Updated: July 6, 2012
Article updates
Reputation gems:
You get these gems as you gain rep from other members for making good contributions and giving helpful advice.