Thursday 27 september 12 8 accelerated reference

This preview shows page 16 - 23 out of 27 pages.

Thursday, 27 September, 12
Image of page 16

Subscribe to view the full document.

8 Accelerated Reference Frames Reference frame that moves with the van: “mysterious” forces move the furniture when the van is accelerating, slowing down or cornering. Reference frame of the road (‘inertial frame’): Friction force between tires and road necessary for acceleration, cornering. Thursday, 27 September, 12
Image of page 17
8 Accelerated Reference Frames Reference frame that moves with the van: “mysterious” forces move the furniture when the van is accelerating, slowing down or cornering. Reference frame of the road (‘inertial frame’): Friction force between tires and road necessary for acceleration, cornering. The motion of furniture is due to inertia: When the truck is cornering, the furniture wants to move straight (first law). Thursday, 27 September, 12
Image of page 18

Subscribe to view the full document.

8 Accelerated Reference Frames Reference frame that moves with the van: “mysterious” forces move the furniture when the van is accelerating, slowing down or cornering. Reference frame of the road (‘inertial frame’): Friction force between tires and road necessary for acceleration, cornering. The motion of furniture is due to inertia: When the truck is cornering, the furniture wants to move straight (first law). Need su ffi cient static friction or normal forces to keep furniture in place. Thursday, 27 September, 12
Image of page 19
9 Question You are pushing your little brother in a box at constant speed across the room. Which is the correct free-body diagram showing all forces acting on your brother (not the box)? A B C D v 0 E None is correct Thursday, 27 September, 12
Image of page 20

Subscribe to view the full document.

10 Question You are pushing your little brother in a box at constant speed across the room. Which is the correct free-body diagram showing all forces acting on your brother (not the box)? A B C D v 0 E None is correct Thursday, 27 September, 12
Image of page 21
11 Question You are pushing your little brother in a box across the room. Which is the correct free-body diagram showing all forces acting on your brother while speeding up?
Image of page 22

Subscribe to view the full document.

Image of page 23
  • Spring '11
  • ERIC
  • Force, Thursday

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