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Circular Motion, Work and Energy - Study Notes | PHYS 121, Study notes of Physics

Material Type: Notes; Class: General Physics I; Subject: Physics; University: New Mexico Institute of Mining and Technology; Term: Fall 2008;

Typology: Study notes

Pre 2010

Uploaded on 08/08/2009

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Getting Help

Workman Room 110 – Grad. student

help (see yellow cards for schedule)

Fidel student center , 2

nd

floor,

Advising resource center – 68 pm

Tuesday (and Wednesday 68 pm)

Physics questions?

(1)Read Ch. 6 – You do not have to

follow the mindbending derivation

on page 93.

(2)An integral is another type of deluxe

meat grinder. It is the opposite of a

derivative

d

dx

ax

n

= nax

d n− 1

dt

at

n

= nat

n− 1

∫^ ax

n

dx=

ax

n 1

n 1

My Academic Honesty Policy Work together on homework freely – you are encouraged to collaborate. Bring 3x5 index card to any quiz/exam. Share answers or otherwise cheat on an exam or quiz – Severe penalties up to and including an F for the course. Cheating enablers will also be penalized.

Uniform circular motion a c = v 2 R Centripetal acceleration is a vector. It always points inward toward the center of the circular path.

Analyzing a ball on a string

You are driving your car (mass m ) at a constant speed v around a flat, unbanked curve of radius R. Which of the following forces should be included in a free-body diagram for the car? A. an outward centrifugal force of magnitude mv 2 / R B. an inward centripetal force of magnitude mv 2 / R C. the force of the car’s acceleration D. two of the above E. none of the above

Q5.

R

For a 20 kg pack, what is tension in each rope? If yield strength of rope is 2000 N, how hard must bear pull to get sardines?

  • Figure 5.
  • Figure 5.

Science teachers ride the vomit comet http://www.youtube.com/watch?v=iCAzo-wTxiU&NR=