lec14 - the track at the top? Which factors determine if...

Info iconThis preview shows pages 1–17. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 14 Feb 20, 2008 P112
Background image of page 1

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

View Full DocumentRight Arrow Icon
Announcements Prelim on Thursday, Feb 28, 7.30pm Bring: Your own Formula sheet (8.5x5.5) Single sided Non-graphing calculator Pen, protractor, ruler In past semesters students have regretted forgetting their protractor/ruler
Background image of page 2
Agenda for today Circular Motion
Background image of page 3

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

View Full DocumentRight Arrow Icon
Lecture 8: Uniform Circular Motion a rad v v a rad a rad v a rad = v 2 R Centripetal force: F = m a rad
Background image of page 4
Background image of page 5

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

View Full DocumentRight Arrow Icon
Rotating frame: nonintertial QuickTimeª and a Road Pizza decompressor are needed to see this picture.
Background image of page 6
QuickTimeª and a TIFF (Uncompressed) decompressor are needed to see this picture. Hurricanes
Background image of page 7

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

View Full DocumentRight Arrow Icon
P112 Here we always work in inertial frames turntable
Background image of page 8
Loop the loop R A B
Background image of page 9

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

View Full DocumentRight Arrow Icon
Loop the loop Why does the ball stay in contact with
Background image of page 10
Background image of page 11

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

View Full DocumentRight Arrow Icon
Background image of page 12
Background image of page 13

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

View Full DocumentRight Arrow Icon
Background image of page 14
Background image of page 15

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

View Full DocumentRight Arrow Icon
Background image of page 16
Background image of page 17
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: the track at the top? Which factors determine if the ball stays in contact with the track? Loop the Loop What is the minimum speed such that the ball stays in contact with the track? solution A: W N a y F y = N + W = m a Loop the Loop What is the minimum speed such that the ball still stays in contact with the track? Ball falls if N = 0 The corresponding minimum speed is: A : F y = N + W = ma a = v 2 R N = 0 v = gR Car going over bump How fast must the car go to become airborne? Summary Dynamics with curved motion a T =v 2 /R a p =d|v|/dt Bumps and loops Leave surface: N=0...
View Full Document

Page1 / 17

lec14 - the track at the top? Which factors determine if...

This preview shows document pages 1 - 17. Sign up to view the full document.

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