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|Lindansare Walking the tightrope till applet|
The weight of the rope walker gives rise to a number of forces, even though
the overall situation is static. Gravity, acting on the walker, causes tension
in the rope, which in turn causes tensions in the guy lines and upward forces
in the poles.
The situation may be schematically drawn in the sketch at right. But that's just a picture. It is far more interesting to investigate what happens when the walker moves, or a heavier walker moves on the rope. You may also want to change the entire situation, for instance by moving the points at which the guy lines are attached.
The applet is meant to be used in the teaching of mechanics in vocational (technical) education. It is not directed at the teaching of methods to calculate forces, since the applet will calculate them. In stead it can be used to reason about the forces in the construction: 'If we change ...., what is the effect on the forces on ....?'
You may want to try out the applet first. Afterwards, have a go at the reasoning problems below theapplet !
Written by Paul Bergervoet (firstname.lastname@example.org)