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!

Equations of Motion

  1. Mar 3, 2005 #1
    Two physics students conduct the following experiment from a very high bridge. Thao drops a 1.5kg shot put from a vertical height of 60m while at exactly the same time Benjamin throws a 100g mass with an initial downwards velocity of 10 m/s from a point 10m above Thao.

    At what time will the 100g mass overtake the shot-put?
     
  2. jcsd
  3. Mar 3, 2005 #2
    There are two ways to set up this problem:

    1. Use the usual equations of motion for body 1 (the heavier mass) and 2 (the lighter mass).

    [tex] S(1) = 70 -10t - 0.5gt^2 [/tex]
    [tex] S(2) = 60 - 0.5gt^2 [/tex]

    Then solve for the time when their positions are the same.

    2. Since the acceleration of both objects are the same under gravity, you may notice that this can be reduced to a simple relative velocity problem.
     
  4. Mar 3, 2005 #3

    dextercioby

    User Avatar
    Science Advisor
    Homework Helper

    And one more thing,though you're give the masses,you may very well neglect air friction.The fact that they give you the masses was just for identification.

    Daniel.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Equations of Motion
  1. Equations of motion (Replies: 4)

  2. Equations of motion (Replies: 8)

  3. Equations of Motion (Replies: 1)

  4. Equations of Motion (Replies: 4)

  5. Equations of Motion (Replies: 8)

Loading...