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 and Impulse

  1. Mar 31, 2009 #1
    A golfer hits a golf ball of mass 0.045 kg the ball over some short trees. He hits the ball at
    an angle of 600 to the horizontal and it travels a horizontal distance (Range) of 60.0 m in a
    time of 8.00 s. The golf club of mass 0.60 kg is in contact with the ball for a time of 2.40

    (a) What is the average impulsive force on the golf ball?

    ANSWER: ____________ ___

    (b) What is the average impulsive force on the golf club?

    ANSWER: ____________ ___

    (c) What is the change in momentum of the golf club?

    ANSWER: Change in Momentum = ___________ ______

    Answers are suppose to be A1) 281.25 A2) -281.25 A3) -.675 kgm/s
  2. jcsd
  3. Mar 31, 2009 #2


    User Avatar
    Homework Helper

    Don,t say bump
    Open the book. Find the relevant formula. Show your effort.
  4. Mar 31, 2009 #3
    refresh. Just putting the forums on my subscription. not trying to get people to do it for me
  5. Mar 31, 2009 #4
    Ok i know the formula that i need to use but i don't know how to solve for velocity of the ball.

    What i would use though if i had the velocity of the ball would be.

    Impulse = (p2-p1)/(t2-t1)

    P = mv which is finding momentum.

    I have an idea in which to find the velocity and that would be a free falling problem. But i can't get anything to work.

    If you have any ideas please help.

  6. Apr 1, 2009 #5
  7. Apr 1, 2009 #6
  8. Apr 1, 2009 #7
    Someone please help
  9. Apr 1, 2009 #8
    If it covers 60 m in 8s, what is the horizontal component of velocity?
    (horizontal v stays constant for projectiles)
    And then, you know the angle which would help you find the y component and you get the initial speed after 2.40 ms contact ...
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook