Hookes Law, set of 5 springs with different spring constants, forces required for 1cm extension are 0.25N, 0.5N, 1N, 1.5N, and 2.5N respectively, Pre-stress has been removed for accurate results, With a hook to support a weight hanger and a red arrow to indicate position
Pulley, Single Sheave, Pulleys wheels are made of plastic and mounted securely in an aluminum housing with a hook on both the top and bottom for suspension, Size: 50mm
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