Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
Friction is an issue beyond Newton’s first law.
Our syllabus describes frcition as a force that opposes motion.
I ask how could we move if there was no friction?
BTW: A really simple demo that deals with inertia and especially
emphasizes the 'change in motion' aspect of the physics is to simply
tie a string to a 1 kg mass. Pull upwards on the string and the mass
rises. Jerk hard on the string and the string breaks. Discuss....