1. Limited time only! Sign up for a free 30min personal 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!

Homework Help: Momentum question

  1. Nov 17, 2007 #1
    1. The problem statement, all variables and given/known data
    A man (mass 80kg) reaches the edge of a 20m cliff in his car (mass 1600kg) at a speed of 150km/hr. He drives off the edge without a change in velocity.

    Calculate the speed at which he enters the water if he ejects from his car at 50km/yr just as the car reaches the water?
  2. jcsd
  3. Nov 17, 2007 #2

    Shooting Star

    User Avatar
    Homework Helper

    Show what you've done so far.

    Also, the direction of ejection is not mentioned. That is crucial.
  4. Nov 17, 2007 #3
    Hmm.....kilometres per year is an interesting unit.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook