Conical Pendulum,- Lecture Slides | PHYS 171, Study notes of Physics

Material Type: Notes; Professor: Losert; Class: INTRO PHYS:MECH&RELATIV; Subject: Physics; University: University of Maryland; Term: Spring 2007;

Typology: Study notes

Pre 2010

Uploaded on 02/13/2009

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Phys171 – Thu 2/22
Chapter 7
1st (of 3) midterm exams on Tuesday 2/27
Counts for 1/9 of semester grade
NOTE: HW due on Fri as usual! Two very difficult
“Level 5” problems in this homework!!
Note: Cut one problem each from HW 6 and 8 to
reduce length of HW
A car drives over the top of a hill. The forces on the car are the
weight and normal force from the hill surface. At the top of the
hill
1. n>w
2. n<w
3. n=w
4. impossible to
determine.
pf3

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Phys171 – Thu 2/

Chapter 7

1 st^ (of 3) midterm exams on Tuesday 2/ Counts for 1/9 of semester grade

NOTE: HW due on Fri as usual! Two very difficult “Level 5” problems in this homework!!

Note: Cut one problem each from HW 6 and 8 to reduce length of HW

A car drives over the top of a hill. The forces on the car are the weight and normal force from the hill surface. At the top of the hill

  1. n>w
  2. n<w
  3. n=w
  4. impossible to determine.

Conical Pendulum

  • The object is in equilibrium in the vertical direction and undergoes uniform circular motion in the horizontal direction
  • v is independent of m

v = Lg sin θ tanθ

Loop-the-Loop

  • At the bottom of the loop, the upward force experienced by the object is greater than its weight

2

2 1

bot

bot

n mg mv r

n mg v rg