https://padlet.com/rojasb_21/corte0zsda37 sections 1 thru 4 en-us 2016-10-04 16:03:52 UTC 2016-10-04 16:20:46 UTC hello@padlet.com rojasb_21 https://padlet.com/rojasb_21/corte0zsda37/wish/128234482 a force that opposes motion]]> 2016-10-04 16:09:07 UTC https://padlet.com/rojasb_21/corte0zsda37/wish/128234482 rojasb_21 https://padlet.com/rojasb_21/corte0zsda37/wish/128236803 How friction works]]> 2016-10-04 16:14:42 UTC https://padlet.com/rojasb_21/corte0zsda37/wish/128236803 rojasb_21 https://padlet.com/rojasb_21/corte0zsda37/wish/128238707 Static friction is friction between two or more solid objects that are not moving relative to each other.]]> 2016-10-04 16:18:25 UTC https://padlet.com/rojasb_21/corte0zsda37/wish/128238707 rojasb_21 https://padlet.com/rojasb_21/corte0zsda37/wish/128239660 kinetic friction is a force that acts between moving surfaces.]]> 2016-10-04 16:20:32 UTC https://padlet.com/rojasb_21/corte0zsda37/wish/128239660