{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Q1%20Phys131-E2%20%282nd%20law%29

Q1%20Phys131-E2%20%282nd%20law%29 - forces C[5 pts What is...

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

View Full Document Right Arrow Icon
Name ___________________________________ Student ID ____________ Score _______ last first Physics 131, WI 2009 Exam 2 Q1 Phys131-E2 (2nd law).doc I. Blocks, Strings, and Pulleys [20 pts] Blocks with masses of m 1 = 1.0 kg and m 2 = 2.0 kg are connected by a string, supported on a frictionless table, and connected by a string and pulley to a hanging block with a mass m 3 = 3.0 kg, as shown, and released from rest. A. [3 pts] In the space below draw a free-body-diagram for each of the blocks and label force accordingly. Identify the third law pairs on your diagram by connecting the two forces by a dash line. B. [3 pts] Write Newton second law for each of the blocks 1, 2, and 3 in terms of specific
Image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: forces. C. [5 pts] What is the acceleration of the system? Block m 1 Block m 2 Block m 3 Block m 1 Block m 2 Block m 3 Name ___________________________________ Student ID ____________ Score_______ last first Physics 131, WI 2009 Exam 2 Q1 Phys131-E2 (2nd law).doc D. [5 pts] What is the tension T 12 (in N) in the string connecting blocks 1 and 2? E. [4 pts] Now suppose that the surface is NOT frictionless. If the coefficient of static friction between the blocks and the surface was μ s = 0.2, will the blocks move or not? Show your work and explain your reasoning....
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    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.

    Student Picture

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

  • Left Quote Icon

    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.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    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.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern