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: Melting bob of pendulum

  1. Mar 22, 2008 #1
    1. The problem statement, all variables and given/known data

    the bob of an oscillating pendulum is made of ice.how is the time period affected if the bob starts melting?

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Mar 22, 2008 #2
    Do you know the formula to calculate Time period of a pendulum ?
  4. Mar 23, 2008 #3
    Melting of Ice reduces its weight.
  5. Mar 26, 2008 #4
    formula of time period is T=2*pi root over l/g
    so how does reduction of weight helps out?....i mean time period is not dependant on mass and gravity remains constant at a particular place (weight =mg)...???
  6. Mar 26, 2008 #5
    That is the trick.You almost got it.
  7. Mar 26, 2008 #6
    Not sure how that's a hint.

    The period of the pendulum is independent of the bob mass. Ah, Galileo's wonderful discoveries.
  8. Mar 26, 2008 #7
    Seems you did not read my next post :p
  9. Mar 26, 2008 #8
    so if g remains constant...then there is no effect on time period????
  10. Mar 26, 2008 #9
  11. Mar 26, 2008 #10
    okie dokie....thank you....
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook