Lec 7 | 8.01 Physics I: Classical Mechanics, Fall 1999

Weight - Perceived Gravity - Weightlessness Free Fall - Zero Gravity in Orbit (misnomer)

View the complete course: http://ocw.mit.edu/8-01F99

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Education

Tags:

• mit
• opencourseware
• physics
• mechanics
• lewin
• vectors
• motion
• gravity
• trajectory
• centripetal
• scalar
• friction
• tension

[Hantroxy]

Great Lecture! It helped me clear a concept. iIts very engrossing to listen to his lectures.

One misses such dedicated people in instituitions.

[pb23me]

string has relatively small ass!!!! lol 9:42

[moah2012]

i am confused... shouldn't the total time for the projectile be 62 seconds? I did the quadratic formula and t =62 not 31....

[levishort36]

This video is a favorite on Honduras

[indseytate718l]

This vid is popular on Tirane

[ahsan2mahmood]

@pb23me its "string has NEGLIGIBLY small ass".



[dinotles]

@kristijan0kroflin That is not really true. light as particlevawe describes how the physical element act at all times. It is like calling a rock both hard and heavy at the same time. Depending of what you measure you might see different aspects, "hardness" or "heavyness". It is not the name of WHERE you find the light particle, like in your examples of " molecule of a tire" called "tire" and "an electron of the human body" called "human body". it has NOTHING to do with the aspects and effects

[ShrodingersPerson]

@ShrodingersPerson confirmed. 29:02 . it is in fact a bagel

[ShrodingersPerson]

Is that a bagel in your pocket?

[kevineugenius]

Even MIT can't figure out how to make blackboard erasers work very well. :)

[Scurmicurv]

@kristijan0kroflin Well, I must admit I belong to the crowd that isn't 100% convinced just yet that gravity will fit just so nicely into our current force model. I'm very colored by the image that comes out of relativistic theory; that gravity is simply an effect of curvature in space-time. That's actually the way I think of potential energy too - just a sort of relative position marker within a curved section of space-time. Though this is not something I'd argue very strongly!

[ghosty210]

damn! if i watched this earlier, i would get higher marks for my exams!