lec10 - Lecture10 P112 Feb11,2008 Agendafortoday Gravitation

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 10 P112 Feb 11, 2008
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Agenda for today Gravitation Newton’s law of gravitation Weight
Background image of page 2
Stretch . . . . . . and attach On a frictionless horizontal surface, a spring is stretched between two fixed walls. Why are the forces acting on the two ends of the spring due to the walls equal in magnitude ? (1) The spring's mass is uniformly distributed along its length. (2) Newton's 2nd Law (3) Newton's 3rd Law (4) The spring was stretched symmetrically. (5) Those two forces are NOT equal in magnitude.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
An example for a non-contact force:
Background image of page 4
Gravitation Newton found that a moon / g = 0.000278 and noticed that R E 2 / R 2 = 0.000273 This inspired him to propose the Universal Law of Gravitation: Universal Law of Gravitation: R R E a moon g where G = 6.67 x 10 -11 m 3 kg -1 s -2 F g = Gm 1 m 2 r 2
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Gravitation Newton published the law of gravitation along with his 3 laws of motion: Every particle attracts every other particle with a force that is proportional to the product of masses and inversely proportional to the square of the distance between them
Background image of page 6
Check the units- does have units of acceleration? Gm
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/16/2009 for the course PHYS 1112 taught by Professor Leclair,a during the Fall '07 term at Cornell University (Engineering School).

Page1 / 19

lec10 - Lecture10 P112 Feb11,2008 Agendafortoday Gravitation

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online