Melting bob of pendulum

1. Mar 22, 2008

proyasha

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. Mar 22, 2008

Hi,
Do you know the formula to calculate Time period of a pendulum ?

3. Mar 23, 2008

physixguru

Hint:
Melting of Ice reduces its weight.

4. Mar 26, 2008

proyasha

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)...???

5. Mar 26, 2008

physixguru

That is the trick.You almost got it.

6. Mar 26, 2008

Snazzy

Not sure how that's a hint.

The period of the pendulum is independent of the bob mass. Ah, Galileo's wonderful discoveries.

7. Mar 26, 2008

physixguru

Seems you did not read my next post :p

8. Mar 26, 2008

proyasha

so if g remains constant...then there is no effect on time period????

9. Mar 26, 2008

physixguru

nopes.

10. Mar 26, 2008

proyasha

okie dokie....thank you....