QUESTION 1 OF 4 · CBSE 2026–27
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PHYSICS ENTELLOQ / AN INTERACTIVE LABORATORY
Explore orbits, elastic strings, waves and connected physics concepts. The interactive experiments need JavaScript enabled in your browser.
A cord stretched by ΔL carries tension T = EA × ΔL / L. A loose cord carries no compressive force. When you move two supports apart, the rope becomes shallower and needs more tension to hold the same weight.
Our cradle is a planar elastic-string approximation, not a simulation of real knots.
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