In an earlier step, an FBD was created for the bottom-most block under the assumption of equilibrium. Which statement best describes the modifications necessary if that FBD is redrawn under the assumption ay<0? The weight vector labeled F g,1 would be unchanged. The normal-force vector labeled Fn,f→1 would become shorter, but the normal-force vector labeled Fn,2→1 would become shorter by a greater amount. The weight vector labeled F g,1 would change length, becoming shorter, but the normal-force vectors would be unchanged. The diagram requires no changes because all of the forces remain the same. The weight vector labeled Fg,1 and the normal-force vector labeled Fn,2→1 would be unchanged, but the normal-force vector labeled Fn,f→1 would become shorter. Because things feel partially weightless in the elevator, all three vectors would be shorter. The weight vector labeled Fg,1 would be unchanged. The normal-force vector labeled Fn,2→1 would become longer, but the normal-force vector labeled Fn,f→1 would become shorter. The weight vector labeled Fg,1 would be unchanged. The normal-force vector labeled Fn,2→1 would become shorter, but the normal-force vector labeled Fn,f→1 would become shorter by a greater amount.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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In an earlier step, an FBD was created for the bottom-most block under the assumption of equilibrium. Which statement best describes the modifications necessary if that FBD is redrawn under the assumption ay<0?

The weight vector labeled F g,1 would be unchanged. The normal-force vector labeled Fn,f→1 would become shorter, but the normal-force vector labeled Fn,2→1 would become shorter by a greater amount.

The weight vector labeled F g,1 would change length, becoming shorter, but the normal-force vectors would be unchanged.

The diagram requires no changes because all of the forces remain the same.

The weight vector labeled Fg,1 and the normal-force vector labeled Fn,2→1 would be unchanged, but the normal-force vector labeled Fn,f→1 would become shorter.

Because things feel partially weightless in the elevator, all three vectors would be shorter.

The weight vector labeled Fg,1 would be unchanged. The normal-force vector labeled Fn,2→1 would become longer, but the normal-force vector labeled Fn,f→1 would become shorter.

The weight vector labeled Fg,1 would be unchanged. The normal-force vector labeled Fn,2→1 would become shorter, but the normal-force vector labeled Fn,f→1 would become shorter by a greater amount.

The image illustrates a stack of three colored blocks on a flat surface, each labeled with a different mass.

- The bottom block is orange and labeled \( m_1 \).
- The middle block is green and labeled \( m_2 \).
- The top block is blue and labeled \( m_3 \).

These blocks are arranged vertically, with \( m_1 \) at the base, directly contacting the flat surface, which is depicted in brown. This setup could be used to study concepts like gravitational forces, normal force, and the resultant forces acting on the blocks depending on different scenarios such as applied forces or friction.

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