Lecture421.pdf - 1-SI units are kg to change-a vector quantity 2 where is the net force m is the mass of the object is the acceleration of the object 2

Lecture421.pdf - 1-SI units are kg to change-a vector...

This preview shows page 1 out of 4 pages.

Unformatted text preview: 1 : : --SI units are kg : : : to change -a vector quantity 2 where: is the net force m is the mass of the object is the acceleration of the object 2 2 2 2 Normal Force N -always a pulling force (so direction of force on an object is 3 ex: 4.57 from textbook o The mover pulls on a rope attached to the box to pull it up the incline (figure below). If the rope makes an angle of 40.0 o with F to exert to move the box up the ramp? F N F 15 mg (= weight) Solving the horizontal equation for N and then substituting into the vertical equation gives: and then plugging in numbers for the trig functions and m and g gives us: F = 56.029858N --> 56.0N 4 ...
View Full Document

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

Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes