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0 votes
4 answers
550 views

Direction of friction of a rotating ring/disk

I'm trying to understand friction but I'm getting a bit confused... If I have a ring rotating on the ground around its COM what is the direction of the friction? If I have the same ring, but this time ...
snatchysquid's user avatar
1 vote
1 answer
103 views

How friction force synchronize linear velocity and angular velocity? [closed]

I am doing a simulation about moving balls on a surface. There are frictions between different balls and the surface. In the beginning, balls have a linear velocity and an angular velocity (which are ...
Yu Wang's user avatar
  • 11
1 vote
2 answers
328 views

Why does an ice hockey stick, when thrown on ice always rotate and translate together before coming to rest? Why not only rotate or only translate?

When a hockey stick is thrown on ice it simultaneously rotates and translates before stopping. Friction probably plays the main role here, along with the shape of the stick. I think maybe it is due to ...
Yatogami's user avatar