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5-lb Weight in Center of Rope

A 5-lb weight is hung in the center of a piece of rope extended over the lecture bench and an additional demo bench

Concept Overview:

1. Equilibrium of Forces

2. The downward force caused by the weight cannot  be counteracted by pulling horizontally on the rope because a great-enough vertical component cannot be achieved.

Lecturer Procedure

Step(s) to FollowExpected Result

1. Pull on the free end of the rope, so as to attempt to lift the weight.

2. Try to make the rope horizontal.

The weight cannot be lifted such that the ropes will be perfectly horizontal

Variation: Feel free to ask for volunteers for the audience to aid with the demonstration.

Category
Transcript

There are no spoken words on this recording.

Identifier
M: S - 002