- #1
nousername
- 31
- 1
HI ALL!
Im new to physics forums, so ill see how i go :)
I have some questions below regarding a simple pendulum:
1) Why does the string need to be massless? What will happen if it isn't massless?
2) What does a "frictionless pivot mean"? If i have two plates which have the string in between and then i clamp the two plates together, does that mean i have a frictionless pivot or a pivot with friction? I don't get what is meant by a frictionless pivot. If you had a choice between a fishing line and string, which one would you choose and why? I would think that the fishing line is too stiff and would cause a retarding force on the pendulum... so i would choose the string... not sure.
3) What is the PHYSICS term given to the 'stiffness' of a string.
Thanks in advance
Im new to physics forums, so ill see how i go :)
I have some questions below regarding a simple pendulum:
1) Why does the string need to be massless? What will happen if it isn't massless?
2) What does a "frictionless pivot mean"? If i have two plates which have the string in between and then i clamp the two plates together, does that mean i have a frictionless pivot or a pivot with friction? I don't get what is meant by a frictionless pivot. If you had a choice between a fishing line and string, which one would you choose and why? I would think that the fishing line is too stiff and would cause a retarding force on the pendulum... so i would choose the string... not sure.
3) What is the PHYSICS term given to the 'stiffness' of a string.
Thanks in advance