problem06_04

# University Physics with Modern Physics with Mastering Physics (11th Edition)

• Homework Help
• PresidentHackerCaribou10582
• 1

This preview shows page 1. Sign up to view the full content.

6.4: a) The friction force to be overcome is , N 5 . 73 ) s / m 80 . 9 )( kg 0 . 30 )( 25 . 0 ( 2 k k = = = = mg n f μ μ or 74 N to two figures. b) From Eq. (6.1), J 331 ) m 5 . 4 )( N 5 . 73 ( = = Fs . The work is positive, since the worker is pushing in the same direction as the crate’s motion. c) Since f and s are oppositely directed, Eq. (6.2) gives
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: J. 331 ) m 5 . 4 )( N 5 . 73 (-=-=-fs d) Both the normal force and gravity act perpendicular to the direction of motion, so neither force does work. e) The net work done is zero....
View Full Document

• '
• NoProfessor
• Force, Normal Force, Friction Force, net work, gravity act

{[ 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