MidTerm1B

# MidTerm1B - PHY 126 Mid-term Exam IB Chapters...

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

PHY 126 Mid-term Exam IB Problem 1(10+15+5 points) Chapters 10,11,12,13,14 A rod is attached to a pivot on the wall at one end and suspended horizontally at the other end by a wire (See Fig.). The rod has mass M=1.0 kg and length L=2.0m. At the end suspended, an object of mass m = 0.5 kg is hung by a wire. Ignore the weights of the wires. (a) Find the tension T on the wire that suspends the rod. The wire makes 30 o with respect to the rod. (b) Calculate the x- and y-component of the force R on the rod at the pivot. (c) Calculate the angle of the force R with respect to the horizontal. Ignore weights of wires wire ° 30 R T L rod pivot m

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

View Full Document
Problem 2(10+10+10 points) ω A A solid cylinder (mass M, radius R) is rotating with an angular velocity about an axis perpendicular to the cylinder through the center as shown in Fig.A. (a)If you put another cylinder made of the same material with the same thickness but with the radius of ½ R on top of the original cylinder, what will the angular velocity be (Fig.B)? The moment of
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