PHY183-Lecture37 - Midterm 2 ! The average for Midterm 2...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
April 4, 2006 Physics for Scientists&Engineers 1 1 Physics for Scientists & Physics for Scientists & Engineers 1 Engineers 1 Spring Semester 2006 Lecture 37 April 4, 2006 Physics for Scientists&Engineers 1 2 Midterm Midterm 2 ! The average for Midterm 2 was 4.91/9 (55%) ! You should do all 9 problems in Corrections Set 2 ! We will calculate your grade as 0.3*(Corrections Set 2 - Midterm 2) + Midterm 2 Don’t just do the problems you missed, do them all! ! If the average student did all the corrections, he/she would get 6.14/9 (68%) April 4, 2006 Physics for Scientists&Engineers 1 3 Review: Review: ! Angular momentum of a point particle ! Use vector product in definition of torque (axial) vector: ! Angular momentum and torque: ! For rigid objects (and only for them): (constant I) r F ! = " r r r L r p = ! r r r d L dt = r r L I = r r r = I r " April 4, 2006 Physics for Scientists&Engineers 1 4 Quiz 37.1 ! The wheel is rotating rapidly counter clockwise, when you look directly towards the axle. Is the direction of the angular momentum towards you or away from you? A) Towards you (out of screen) B) Away from you (into screen) Front view
Background image of page 1

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

View Full DocumentRight Arrow Icon
April 4, 2006 Physics for Scientists&Engineers 1 5 Quiz 37.2 ! The wheel is now hung from a rope on the axle so
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

PHY183-Lecture37 - Midterm 2 ! The average for Midterm 2...

This preview shows document pages 1 - 3. Sign up to view the full document.

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