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!

Impact Speed (?)

  1. Aug 30, 2006 #1
    Ball bearings are made by letting spherical drops of molten metal fall inside a tall tower called a shot tower and solidify as they fall.
    If a bearing needs 4.50 to solidify enough for impact, how high must the tower be?
    What is the bearing's impact speed?

    I got the answer for the first part correct it was 99.2
    d=.5*9.8*4.5^2=99.2
    but I am not sure how to approach the second part.....

    What is the bearing's impact speed?
    I search all over but couldn't find an equation could someone help me with that.
    All I need is the equation.....thank you
     
  2. jcsd
  3. Aug 30, 2006 #2

    mezarashi

    User Avatar
    Homework Helper

    Look for the kinematics equations. Given all the information you have, you actually have a choice on the equation you want to use.

    How about the intuitive: final velocity = initial velocity + (acceleration x time)
     
  4. Aug 31, 2006 #3

    HallsofIvy

    User Avatar
    Staff Emeritus
    Science Advisor

    You know that v= -9.8 t m/s2 and t= 4.5 s!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Impact Speed (?)
  1. Impact Speed (Replies: 3)

  2. Impact speed (Replies: 3)

  3. Asteroid impact speed (Replies: 8)

  4. Impact speed (Replies: 1)

Loading...