Effect of Melting Bob on Pendulum Time Period?

[proyasha]

Homework Statement

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

Homework Equations

The Attempt at a Solution

 

[Google_Spider]

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

 

[physixguru]

Hint:
Melting of Ice reduces its weight.

 

[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 dependent on mass and gravity remains constant at a particular place (weight =mg)...?

 

[physixguru]

That is the trick.You almost got it.

 

[Snazzy]

Hint:
Melting of Ice reduces its weight.

Not sure how that's a hint.

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

 

[physixguru]

Not sure how that's a hint.

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

Seems you did not read my next post :p

 

[proyasha]

That is the trick.You almost got it.

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

 

[physixguru]

nopes.

 

[proyasha]

okie dokie...thank you...