{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Rec05_172Fall11

# Rec05_172Fall11 - Physics 172 Recitation 05 Fall 2011 As...

This preview shows pages 1–2. Sign up to view the full content.

Physics 172 – Recitation 05 Fall 2011 As you work on today’s problems remember that every time you use a fundamental principle you must explain clearly what physical system you are applying the principle to and which objects in the system’s surroundings are interacting significantly with the system. Problem 1. The figure below shows the view looking straight down on the ice surface of a hockey rink. A short rod is stuck in the ice at point O. A hockey puck is attached to it by a string so that hockey players can practice their shots without having to chase the puck. When they hit the puck at location A , the idea is that it will move along the circular path shown and come back to them. a) Transfer a sketch of this figure to your white board and draw arrows representing the momentum of the puck when it is at locations A and B. b) What objects in the puck’s surroundings are interacting significantly with it? In what direction does the force exerted on the puck by each of those objects point?

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern